402879712 has 24 divisors (see below), whose sum is σ = 808138296. Its totient is φ = 197638272.

The previous prime is 402879677. The next prime is 402879733. The reversal of 402879712 is 217978204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117078 + ... + 120469.

It is an arithmetic number, because the mean of its divisors is an integer number (33672429).

Almost surely, 2^402879712 is an apocalyptic number.

It is an amenable number.

402879712 is an abundant number, since it is smaller than the sum of its proper divisors (405258584).

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

402879712 is a wasteful number, since it uses less digits than its factorization.

402879712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237610 (or 237602 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 402879712 is about 20071.8636902506. The cubic root of 402879712 is about 738.5702317483.

The spelling of 402879712 in words is "four hundred two million, eight hundred seventy-nine thousand, seven hundred twelve".