400264772 has 24 divisors (see below), whose sum is σ = 713422080. Its totient is φ = 196454720.

The previous prime is 400264771. The next prime is 400264789. The reversal of 400264772 is 277462004.

It is not an unprimeable number, because it can be changed into a prime (400264771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64928 + ... + 70824.

It is an arithmetic number, because the mean of its divisors is an integer number (29725920).

Almost surely, 2^400264772 is an apocalyptic number.

It is an amenable number.

400264772 is a deficient number, since it is larger than the sum of its proper divisors (313157308).

400264772 is a wasteful number, since it uses less digits than its factorization.

400264772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211 (or 6209 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 400264772 is about 20006.6182049841. The cubic root of 400264772 is about 736.9688352690.

The spelling of 400264772 in words is "four hundred million, two hundred sixty-four thousand, seven hundred seventy-two".