400996892 has 24 divisors (see below), whose sum is σ = 720549312. Its totient is φ = 195148800.

The previous prime is 400996879. The next prime is 400996907. The reversal of 400996892 is 298699004.

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 7 ways as a sum of consecutive naturals, for example, 73292 + ... + 78572.

It is an arithmetic number, because the mean of its divisors is an integer number (30022888).

Almost surely, 2^400996892 is an apocalyptic number.

It is an amenable number.

400996892 is a deficient number, since it is larger than the sum of its proper divisors (319552420).

400996892 is a wasteful number, since it uses less digits than its factorization.

400996892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789 (or 5787 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 400996892 is about 20024.9067912937. The cubic root of 400996892 is about 737.4178888570.

The spelling of 400996892 in words is "four hundred million, nine hundred ninety-six thousand, eight hundred ninety-two".