400494712 has 16 divisors (see below), whose sum is σ = 765096840. Its totient is φ = 196468896.

The previous prime is 400494649. The next prime is 400494737. The reversal of 400494712 is 217494004.

It is a congruent number.

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, 471858 + ... + 472705.

Almost surely, 2^400494712 is an apocalyptic number.

It is an amenable number.

400494712 is a deficient number, since it is larger than the sum of its proper divisors (364602128).

400494712 is a wasteful number, since it uses less digits than its factorization.

400494712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944622 (or 944618 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 400494712 is about 20012.3639783010. The cubic root of 400494712 is about 737.1099303528.

The spelling of 400494712 in words is "four hundred million, four hundred ninety-four thousand, seven hundred twelve".