404604156 has 72 divisors (see below), whose sum is σ = 1053445120. Its totient is φ = 120748320.

The previous prime is 404604133. The next prime is 404604181. The reversal of 404604156 is 651406404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95205 + ... + 99363.

Almost surely, 2^404604156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404604156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526722560).

404604156 is an abundant number, since it is smaller than the sum of its proper divisors (648840964).

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

404604156 is a wasteful number, since it uses less digits than its factorization.

404604156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255 (or 4242 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 404604156 is about 20114.7745699523. The cubic root of 404604156 is about 739.6224979830.

The spelling of 404604156 in words is "four hundred four million, six hundred four thousand, one hundred fifty-six".