402067012 has 12 divisors (see below), whose sum is σ = 722634220. Its totient is φ = 195600096.

The previous prime is 402067009. The next prime is 402067021. The reversal of 402067012 is 210760204.

It can be written as a sum of positive squares in 2 ways, for example, as 293573956 + 108493056 = 17134^2 + 10416^2 .

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, 1358187 + ... + 1358482.

Almost surely, 2^402067012 is an apocalyptic number.

It is an amenable number.

402067012 is a deficient number, since it is larger than the sum of its proper divisors (320567208).

402067012 is a wasteful number, since it uses less digits than its factorization.

402067012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716710 (or 2716708 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 402067012 is about 20051.6087135172. The cubic root of 402067012 is about 738.0732760677.

The spelling of 402067012 in words is "four hundred two million, sixty-seven thousand, twelve".