113404020 has 48 divisors (see below), whose sum is σ = 319659648. Its totient is φ = 30038400.

The previous prime is 113404009. The next prime is 113404033. The reversal of 113404020 is 20404311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2802 + ... + 15318.

It is an arithmetic number, because the mean of its divisors is an integer number (6659576).

Almost surely, 2^113404020 is an apocalyptic number.

113404020 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 113404020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159829824).

113404020 is an abundant number, since it is smaller than the sum of its proper divisors (206255628).

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

113404020 is a wasteful number, since it uses less digits than its factorization.

113404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12680 (or 12678 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 113404020 is about 10649.1323590234. The cubic root of 113404020 is about 484.0343133016.

Adding to 113404020 its reverse (20404311), we get a palindrome (133808331).

The spelling of 113404020 in words is "one hundred thirteen million, four hundred four thousand, twenty".