402231505356 has 18 divisors (see below), whose sum is σ = 1016751860852. Its totient is φ = 134077168440.

The previous prime is 402231505307. The next prime is 402231505387. The reversal of 402231505356 is 653505132204.

402231505356 is a `hidden beast` number, since 40 + 2 + 2 + 31 + 50 + 535 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 11173097371 = 402231505356 / (4 + 0 + 2 + 2 + 3 + 1 + 5 + 0 + 5 + 3 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 402231505356.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5586548650 + ... + 5586548721.

Almost surely, 2^402231505356 is an apocalyptic number.

It is an amenable number.

402231505356 is an abundant number, since it is smaller than the sum of its proper divisors (614520355496).

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

402231505356 is a wasteful number, since it uses less digits than its factorization.

402231505356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11173097381 (or 11173097376 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 402231505356 in words is "four hundred two billion, two hundred thirty-one million, five hundred five thousand, three hundred fifty-six".