402560013 has 8 divisors (see below), whose sum is σ = 539961408. Its totient is φ = 266765984.

The previous prime is 402559981. The next prime is 402560021. The reversal of 402560013 is 310065204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402560013 - 2⁵ = 402559981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402560113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401256 + ... + 402257.

It is an arithmetic number, because the mean of its divisors is an integer number (67495176).

Almost surely, 2^402560013 is an apocalyptic number.

It is an amenable number.

402560013 is a deficient number, since it is larger than the sum of its proper divisors (137401395).

402560013 is a wasteful number, since it uses less digits than its factorization.

402560013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803683.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 402560013 is about 20063.8982503401. The cubic root of 402560013 is about 738.3748197005.

The spelling of 402560013 in words is "four hundred two million, five hundred sixty thousand, thirteen".