402970020 has 48 divisors (see below), whose sum is σ = 1129524480. Its totient is φ = 107343616.

The previous prime is 402969979. The next prime is 402970039. The reversal of 402970020 is 20079204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63136 + ... + 69224.

It is an arithmetic number, because the mean of its divisors is an integer number (23531760).

Almost surely, 2^402970020 is an apocalyptic number.

It is an amenable number.

402970020 is an abundant number, since it is smaller than the sum of its proper divisors (726554460).

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

402970020 is a wasteful number, since it uses less digits than its factorization.

402970020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204 (or 7202 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 402970020 is about 20074.1131809104. The cubic root of 402970020 is about 738.6254126666.

The spelling of 402970020 in words is "four hundred two million, nine hundred seventy thousand, twenty".