402500115 has 48 divisors (see below), whose sum is σ = 732932928. Its totient is φ = 203943168.

The previous prime is 402500101. The next prime is 402500191. The reversal of 402500115 is 511005204.

It is not a de Polignac number, because 402500115 - 2⁴ = 402500099 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161257 + ... + 163733.

It is an arithmetic number, because the mean of its divisors is an integer number (15269436).

Almost surely, 2^402500115 is an apocalyptic number.

402500115 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

402500115 is a deficient number, since it is larger than the sum of its proper divisors (330432813).

402500115 is a wasteful number, since it uses less digits than its factorization.

402500115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668 (or 2665 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 402500115 is about 20062.4055137962. The cubic root of 402500115 is about 738.3381962843.

Adding to 402500115 its reverse (511005204), we get a palindrome (913505319).

The spelling of 402500115 in words is "four hundred two million, five hundred thousand, one hundred fifteen".