1104215420 has 96 divisors (see below), whose sum is σ = 2969326080. Its totient is φ = 334851840.

The previous prime is 1104215401. The next prime is 1104215423. The reversal of 1104215420 is 245124011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1104215392 and 1104215401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104215423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47291 + ... + 66669.

It is an arithmetic number, because the mean of its divisors is an integer number (30930480).

Almost surely, 2^1104215420 is an apocalyptic number.

1104215420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1104215420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1484663040).

1104215420 is an abundant number, since it is smaller than the sum of its proper divisors (1865110660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1104215420 is a wasteful number, since it uses less digits than its factorization.

1104215420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19443 (or 19441 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1104215420 is about 33229.7369836115. The cubic root of 1104215420 is about 1033.5970692290.

Adding to 1104215420 its reverse (245124011), we get a palindrome (1349339431).

It can be divided in two parts, 11042 and 15420, that added together give a palindrome (26462).

The spelling of 1104215420 in words is "one billion, one hundred four million, two hundred fifteen thousand, four hundred twenty".