402040264 has 32 divisors (see below), whose sum is σ = 771825600. Its totient is φ = 196269120.

The previous prime is 402040241. The next prime is 402040283. The reversal of 402040264 is 462040204.

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 7 ways as a sum of consecutive naturals, for example, 64869 + ... + 70795.

It is an arithmetic number, because the mean of its divisors is an integer number (24119550).

Almost surely, 2^402040264 is an apocalyptic number.

It is an amenable number.

402040264 is a deficient number, since it is larger than the sum of its proper divisors (369785336).

402040264 is a wasteful number, since it uses less digits than its factorization.

402040264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133 (or 6129 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 402040264 is about 20050.9417235201. The cubic root of 402040264 is about 738.0569086287.

Adding to 402040264 its reverse (462040204), we get a palindrome (864080468).

The spelling of 402040264 in words is "four hundred two million, forty thousand, two hundred sixty-four".