402656472 has 48 divisors (see below), whose sum is σ = 1115897640. Its totient is φ = 131096448.

The previous prime is 402656467. The next prime is 402656477. The reversal of 402656472 is 274656204.

402656472 is a `hidden beast` number, since 4 + 0 + 2 + 6 + 5 + 647 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (402656467) and next prime (402656477).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402656477) 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, 61933 + ... + 68124.

Almost surely, 2^402656472 is an apocalyptic number.

It is an amenable number.

402656472 is an abundant number, since it is smaller than the sum of its proper divisors (713241168).

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

402656472 is a wasteful number, since it uses less digits than its factorization.

402656472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130112 (or 130105 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 402656472 is about 20066.3019014466. The cubic root of 402656472 is about 738.4337899629.

The spelling of 402656472 in words is "four hundred two million, six hundred fifty-six thousand, four hundred seventy-two".