1534020120 has 224 divisors, whose sum is σ = 5345032320. Its totient is φ = 395642880.

The previous prime is 1534020091. The next prime is 1534020127. The reversal of 1534020120 is 210204351.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1534020093 and 1534020102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534020127) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 903112 + ... + 904808.

Almost surely, 2^1534020120 is an apocalyptic number.

1534020120 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 1534020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2672516160).

1534020120 is an abundant number, since it is smaller than the sum of its proper divisors (3811012200).

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

1534020120 is a wasteful number, since it uses less digits than its factorization.

1534020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1534020120 is about 39166.5689076794. The cubic root of 1534020120 is about 1153.3036998486.

Adding to 1534020120 its reverse (210204351), we get a palindrome (1744224471).

The spelling of 1534020120 in words is "one billion, five hundred thirty-four million, twenty thousand, one hundred twenty".