402870672 has 60 divisors (see below), whose sum is σ = 1169248080. Its totient is φ = 134288928.

The previous prime is 402870647. The next prime is 402870673. The reversal of 402870672 is 276078204.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (402870673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47922 + ... + 55697.

It is an arithmetic number, because the mean of its divisors is an integer number (19487468).

Almost surely, 2^402870672 is an apocalyptic number.

It is an amenable number.

402870672 is an abundant number, since it is smaller than the sum of its proper divisors (766377408).

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

402870672 is a wasteful number, since it uses less digits than its factorization.

402870672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103642 (or 103624 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 402870672 is about 20071.6384981396. The cubic root of 402870672 is about 738.5647075810.

The spelling of 402870672 in words is "four hundred two million, eight hundred seventy thousand, six hundred seventy-two".