402444068 has 24 divisors (see below), whose sum is σ = 762283200. Its totient is φ = 184805280.

The previous prime is 402444019. The next prime is 402444071. The reversal of 402444068 is 860444204.

It is a super-2 number, since 2×402444068² = 323922455736777248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9098 + ... + 29793.

It is an arithmetic number, because the mean of its divisors is an integer number (31761800).

Almost surely, 2^402444068 is an apocalyptic number.

It is an amenable number.

402444068 is a deficient number, since it is larger than the sum of its proper divisors (359839132).

402444068 is a wasteful number, since it uses less digits than its factorization.

402444068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39107 (or 39105 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 402444068 is about 20061.0086486198. The cubic root of 402444068 is about 738.3039241933.

The spelling of 402444068 in words is "four hundred two million, four hundred forty-four thousand, sixty-eight".