404872132 has 24 divisors (see below), whose sum is σ = 837668160. Its totient is φ = 167532960.

The previous prime is 404872129. The next prime is 404872163. The reversal of 404872132 is 231278404.

It is a junction number, because it is equal to n+sod(n) for n = 404872094 and 404872103.

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, 248494 + ... + 250117.

It is an arithmetic number, because the mean of its divisors is an integer number (34902840).

Almost surely, 2^404872132 is an apocalyptic number.

It is an amenable number.

404872132 is an abundant number, since it is smaller than the sum of its proper divisors (432796028).

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

404872132 is a wasteful number, since it uses less digits than its factorization.

404872132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498651 (or 498649 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 404872132 is about 20121.4346407009. The cubic root of 404872132 is about 739.7857500031.

The spelling of 404872132 in words is "four hundred four million, eight hundred seventy-two thousand, one hundred thirty-two".