400446032 has 30 divisors (see below), whose sum is σ = 902537658. Its totient is φ = 171619392.

The previous prime is 400446017. The next prime is 400446049. The reversal of 400446032 is 230644004.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 380874256 + 19571776 = 19516^2 + 4424^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400445989 and 400446007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 254603 + ... + 256170.

Almost surely, 2^400446032 is an apocalyptic number.

It is an amenable number.

400446032 is an abundant number, since it is smaller than the sum of its proper divisors (502091626).

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

400446032 is a wasteful number, since it uses less digits than its factorization.

400446032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510795 (or 510782 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 400446032 is about 20011.1476932234. The cubic root of 400446032 is about 737.0800639865.

The spelling of 400446032 in words is "four hundred million, four hundred forty-six thousand, thirty-two".