402315402 has 32 divisors (see below), whose sum is σ = 841029120. Its totient is φ = 128058480.

The previous prime is 402315383. The next prime is 402315449. The reversal of 402315402 is 204513204.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 93249 + ... + 97467.

It is an arithmetic number, because the mean of its divisors is an integer number (26282160).

Almost surely, 2^402315402 is an apocalyptic number.

402315402 is an abundant number, since it is smaller than the sum of its proper divisors (438713718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402315402 is a wasteful number, since it uses less digits than its factorization.

402315402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 402315402 is about 20057.8015245939. The cubic root of 402315402 is about 738.2252343862.

Adding to 402315402 its reverse (204513204), we get a palindrome (606828606).

The spelling of 402315402 in words is "four hundred two million, three hundred fifteen thousand, four hundred two".