400452232 has 16 divisors (see below), whose sum is σ = 751717260. Its totient is φ = 199994304.

The previous prime is 400452229. The next prime is 400452313. The reversal of 400452232 is 232254004.

It can be written as a sum of positive squares in 2 ways, for example, as 399440196 + 1012036 = 19986^2 + 1006^2 .

It is a super-2 number, since 2×400452232² = 320723980227563648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21523 + ... + 35554.

Almost surely, 2^400452232 is an apocalyptic number.

It is an amenable number.

400452232 is a deficient number, since it is larger than the sum of its proper divisors (351265028).

400452232 is a wasteful number, since it uses less digits than its factorization.

400452232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57960 (or 57956 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 400452232 is about 20011.3026062773. The cubic root of 400452232 is about 737.0838679721.

The spelling of 400452232 in words is "four hundred million, four hundred fifty-two thousand, two hundred thirty-two".