402361656 has 16 divisors (see below), whose sum is σ = 1005904200. Its totient is φ = 134120544.

The previous prime is 402361649. The next prime is 402361657. The reversal of 402361656 is 656163204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402361657) 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, 8382511 + ... + 8382558.

Almost surely, 2^402361656 is an apocalyptic number.

It is an amenable number.

402361656 is an abundant number, since it is smaller than the sum of its proper divisors (603542544).

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

402361656 is a wasteful number, since it uses less digits than its factorization.

402361656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16765078 (or 16765074 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 402361656 is about 20058.9545091463. The cubic root of 402361656 is about 738.2535244304.

The spelling of 402361656 in words is "four hundred two million, three hundred sixty-one thousand, six hundred fifty-six".