404251232 has 96 divisors (see below), whose sum is σ = 997194240. Its totient is φ = 156718080.

The previous prime is 404251223. The next prime is 404251249. The reversal of 404251232 is 232152404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 404251198 and 404251207.

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, 884348 + ... + 884804.

It is an arithmetic number, because the mean of its divisors is an integer number (10387440).

Almost surely, 2^404251232 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 404251232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498597120).

404251232 is an abundant number, since it is smaller than the sum of its proper divisors (592943008).

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

404251232 is a wasteful number, since it uses less digits than its factorization.

404251232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 404251232 is about 20105.9999005272. Note that the first 4 decimals coincide. The cubic root of 404251232 is about 739.4073852943.

The spelling of 404251232 in words is "four hundred four million, two hundred fifty-one thousand, two hundred thirty-two".