400915852 has 12 divisors (see below), whose sum is σ = 732107376. Its totient is φ = 191742320.

The previous prime is 400915847. The next prime is 400915859. The reversal of 400915852 is 258519004.

It is not an unprimeable number, because it can be changed into a prime (400915859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178799 + ... + 2178982.

It is an arithmetic number, because the mean of its divisors is an integer number (61008948).

Almost surely, 2^400915852 is an apocalyptic number.

It is an amenable number.

400915852 is a deficient number, since it is larger than the sum of its proper divisors (331191524).

400915852 is a wasteful number, since it uses less digits than its factorization.

400915852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357808 (or 4357806 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 400915852 is about 20022.8832089687. The cubic root of 400915852 is about 737.3682090273.

The spelling of 400915852 in words is "four hundred million, nine hundred fifteen thousand, eight hundred fifty-two".