400492112 has 20 divisors (see below), whose sum is σ = 776358420. Its totient is φ = 200141568.

The previous prime is 400492109. The next prime is 400492129. The reversal of 400492112 is 211294004.

It can be written as a sum of positive squares in 2 ways, for example, as 219750976 + 180741136 = 14824^2 + 13444^2 .

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, 31964 + ... + 42692.

It is an arithmetic number, because the mean of its divisors is an integer number (38817921).

Almost surely, 2^400492112 is an apocalyptic number.

It is an amenable number.

400492112 is a deficient number, since it is larger than the sum of its proper divisors (375866308).

400492112 is a wasteful number, since it uses less digits than its factorization.

400492112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13070 (or 13064 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 400492112 is about 20012.2990183537. The cubic root of 400492112 is about 737.1083352506.

The spelling of 400492112 in words is "four hundred million, four hundred ninety-two thousand, one hundred twelve".