400776632 has 32 divisors (see below), whose sum is σ = 803124720. Its totient is φ = 186831360.

The previous prime is 400776601. The next prime is 400776667. The reversal of 400776632 is 236677004.

It is a junction number, because it is equal to n+sod(n) for n = 400776592 and 400776601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782 + ... + 28322.

Almost surely, 2^400776632 is an apocalyptic number.

It is an amenable number.

400776632 is an abundant number, since it is smaller than the sum of its proper divisors (402348088).

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

400776632 is a wasteful number, since it uses less digits than its factorization.

400776632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27671 (or 27667 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 400776632 is about 20019.4063848057. The cubic root of 400776632 is about 737.2828475676.

The spelling of 400776632 in words is "four hundred million, seven hundred seventy-six thousand, six hundred thirty-two".