402986672 has 20 divisors (see below), whose sum is σ = 851767656. Its totient is φ = 183175680.

The previous prime is 402986671. The next prime is 402986677. The reversal of 402986672 is 276689204.

It is a super-3 number, since 3×402986672³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (402986671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144673 + ... + 1145024.

Almost surely, 2^402986672 is an apocalyptic number.

It is an amenable number.

402986672 is an abundant number, since it is smaller than the sum of its proper divisors (448780984).

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

402986672 is a wasteful number, since it uses less digits than its factorization.

402986672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289716 (or 2289710 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 402986672 is about 20074.5279396553. The cubic root of 402986672 is about 738.6355866418.

The spelling of 402986672 in words is "four hundred two million, nine hundred eighty-six thousand, six hundred seventy-two".