120556404 has 48 divisors (see below), whose sum is σ = 313320000. Its totient is φ = 40087008.

The previous prime is 120556399. The next prime is 120556417. The reversal of 120556404 is 404655021.

120556404 is a `hidden beast` number, since 1 + 205 + 56 + 404 = 666.

It is a super-2 number, since 2×120556404² = 29067693090822432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 52774 + ... + 55010.

It is an arithmetic number, because the mean of its divisors is an integer number (6527500).

Almost surely, 2^120556404 is an apocalyptic number.

It is an amenable number.

120556404 is an abundant number, since it is smaller than the sum of its proper divisors (192763596).

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

120556404 is a wasteful number, since it uses less digits than its factorization.

120556404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749 (or 2741 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 120556404 is about 10979.8180312790. The cubic root of 120556404 is about 494.0035786810.

The spelling of 120556404 in words is "one hundred twenty million, five hundred fifty-six thousand, four hundred four".