404252632 has 32 divisors (see below), whose sum is σ = 886406400. Its totient is φ = 169221024.

The previous prime is 404252627. The next prime is 404252647. The reversal of 404252632 is 236252404.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 404252632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81532 + ... + 86347.

It is an arithmetic number, because the mean of its divisors is an integer number (27700200).

Almost surely, 2^404252632 is an apocalyptic number.

It is an amenable number.

404252632 is an abundant number, since it is smaller than the sum of its proper divisors (482153768).

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

404252632 is a wasteful number, since it uses less digits than its factorization.

404252632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167935 (or 167931 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 404252632 is about 20106.0347159752. The cubic root of 404252632 is about 739.4082388634.

The spelling of 404252632 in words is "four hundred four million, two hundred fifty-two thousand, six hundred thirty-two".