400292012 has 12 divisors (see below), whose sum is σ = 701449056. Its totient is φ = 199878000.

The previous prime is 400291999. The next prime is 400292021. The reversal of 400292012 is 210292004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63623 + ... + 69630.

It is an arithmetic number, because the mean of its divisors is an integer number (58454088).

Almost surely, 2^400292012 is an apocalyptic number.

It is an amenable number.

400292012 is a deficient number, since it is larger than the sum of its proper divisors (301157044).

400292012 is a wasteful number, since it uses less digits than its factorization.

400292012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134008 (or 134006 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 400292012 is about 20007.2989681266. The cubic root of 400292012 is about 736.9855530161.

The spelling of 400292012 in words is "four hundred million, two hundred ninety-two thousand, twelve".