402018316 has 24 divisors (see below), whose sum is σ = 804898976. Its totient is φ = 172108800.

The previous prime is 402018313. The next prime is 402018317. The reversal of 402018316 is 613810204.

It is not an unprimeable number, because it can be changed into a prime (402018313) 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, 20716 + ... + 35116.

Almost surely, 2^402018316 is an apocalyptic number.

It is an amenable number.

402018316 is an abundant number, since it is smaller than the sum of its proper divisors (402880660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402018316 is a wasteful number, since it uses less digits than its factorization.

402018316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15409 (or 15407 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 402018316 is about 20050.3944100858. The cubic root of 402018316 is about 738.0434778282.

The spelling of 402018316 in words is "four hundred two million, eighteen thousand, three hundred sixteen".