402561475 has 6 divisors (see below), whose sum is σ = 499176260. Its totient is φ = 322049160.

The previous prime is 402561469. The next prime is 402561487. The reversal of 402561475 is 574165204.

It is not a de Polignac number, because 402561475 - 2¹⁹ = 402037187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402561475.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8051205 + ... + 8051254.

Almost surely, 2^402561475 is an apocalyptic number.

402561475 is a deficient number, since it is larger than the sum of its proper divisors (96614785).

402561475 is a wasteful number, since it uses less digits than its factorization.

402561475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16102469 (or 16102464 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 402561475 is about 20063.9346839048. The cubic root of 402561475 is about 738.3757135653.

The spelling of 402561475 in words is "four hundred two million, five hundred sixty-one thousand, four hundred seventy-five".