400774332 has 36 divisors (see below), whose sum is σ = 1087817640. Its totient is φ = 114506784.

The previous prime is 400774327. The next prime is 400774357. The reversal of 400774332 is 233477004.

It is a self number, because there is not a number n which added to its sum of digits gives 400774332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340207 + ... + 341382.

Almost surely, 2^400774332 is an apocalyptic number.

400774332 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

400774332 is an abundant number, since it is smaller than the sum of its proper divisors (687043308).

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

400774332 is a wasteful number, since it uses less digits than its factorization.

400774332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681610 (or 681601 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 400774332 is about 20019.3489404626. The cubic root of 400774332 is about 737.2814371778.

The spelling of 400774332 in words is "four hundred million, seven hundred seventy-four thousand, three hundred thirty-two".