400054012 has 12 divisors (see below), whose sum is σ = 700304416. Its totient is φ = 199967040.

The previous prime is 400054009. The next prime is 400054033. The reversal of 400054012 is 210450004.

It is a super-2 number, since 2×400054012² = 320086425034592288, which contains 22 as substring.

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, 2212 + ... + 28372.

Almost surely, 2^400054012 is an apocalyptic number.

It is an amenable number.

400054012 is a deficient number, since it is larger than the sum of its proper divisors (300250404).

400054012 is a wasteful number, since it uses less digits than its factorization.

400054012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29988 (or 29986 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 400054012 is about 20001.3502544203. The cubic root of 400054012 is about 736.8394618870.

The spelling of 400054012 in words is "four hundred million, fifty-four thousand, twelve".