400672292 has 12 divisors (see below), whose sum is σ = 701693916. Its totient is φ = 200188320.

The previous prime is 400672273. The next prime is 400672301. The reversal of 400672292 is 292276004.

It can be written as a sum of positive squares in 2 ways, for example, as 260628736 + 140043556 = 16144^2 + 11834^2 .

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, 30743 + ... + 41790.

It is an arithmetic number, because the mean of its divisors is an integer number (58474493).

Almost surely, 2^400672292 is an apocalyptic number.

It is an amenable number.

400672292 is a deficient number, since it is larger than the sum of its proper divisors (301021624).

400672292 is a wasteful number, since it uses less digits than its factorization.

400672292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73918 (or 73916 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 400672292 is about 20016.8002437952. The cubic root of 400672292 is about 737.2188594979.

The spelling of 400672292 in words is "four hundred million, six hundred seventy-two thousand, two hundred ninety-two".