402590680 has 16 divisors (see below), whose sum is σ = 905829120. Its totient is φ = 161036256.

The previous prime is 402590633. The next prime is 402590701. The reversal of 402590680 is 86095204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5032344 + ... + 5032423.

It is an arithmetic number, because the mean of its divisors is an integer number (56614320).

Almost surely, 2^402590680 is an apocalyptic number.

402590680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402590680 is an abundant number, since it is smaller than the sum of its proper divisors (503238440).

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

402590680 is a wasteful number, since it uses less digits than its factorization.

402590680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10064778 (or 10064774 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 402590680 is about 20064.6624691272. The cubic root of 402590680 is about 738.3935690090.

The spelling of 402590680 in words is "four hundred two million, five hundred ninety thousand, six hundred eighty".