402440350520515 has 32 divisors (see below), whose sum is σ = 492236332814016. Its totient is φ = 315806039162880.

The previous prime is 402440350520501. The next prime is 402440350520587. The reversal of 402440350520515 is 515025053044204.

It is not a de Polignac number, because 402440350520515 - 2²⁹ = 402439813649603 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4435487700 + ... + 4435578430.

It is an arithmetic number, because the mean of its divisors is an integer number (15382385400438).

Almost surely, 2^{402440350520515} is an apocalyptic number.

402440350520515 is a deficient number, since it is larger than the sum of its proper divisors (89795982293501).

402440350520515 is a wasteful number, since it uses less digits than its factorization.

402440350520515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171879.

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 402440350520515 in words is "four hundred two trillion, four hundred forty billion, three hundred fifty million, five hundred twenty thousand, five hundred fifteen".