402560117 has 2 divisors, whose sum is σ = 402560118. Its totient is φ = 402560116.

The previous prime is 402560113. The next prime is 402560129. The reversal of 402560117 is 711065204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283619281 + 118940836 = 16841^2 + 10906^2 .

It is a cyclic number.

It is not a de Polignac number, because 402560117 - 2² = 402560113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402560113) by changing a digit.

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 as a sum of consecutive naturals, namely, 201280058 + 201280059.

It is an arithmetic number, because the mean of its divisors is an integer number (201280059).

Almost surely, 2^402560117 is an apocalyptic number.

It is an amenable number.

402560117 is a deficient number, since it is larger than the sum of its proper divisors (1).

402560117 is an equidigital number, since it uses as much as digits as its factorization.

402560117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 402560117 is about 20063.9008420596. The cubic root of 402560117 is about 738.3748832860.

The spelling of 402560117 in words is "four hundred two million, five hundred sixty thousand, one hundred seventeen".