402628640260 has 96 divisors (see below), whose sum is σ = 1054418383872. Its totient is φ = 125463285120.

The previous prime is 402628640251. The next prime is 402628640261. The reversal of 402628640260 is 62046826204.

It is not an unprimeable number, because it can be changed into a prime (402628640261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6565299 + ... + 6626341.

It is an arithmetic number, because the mean of its divisors is an integer number (10983524832).

Almost surely, 2^402628640260 is an apocalyptic number.

It is an amenable number.

402628640260 is an abundant number, since it is smaller than the sum of its proper divisors (651789743612).

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

402628640260 is a wasteful number, since it uses less digits than its factorization.

402628640260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65353 (or 65351 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 402628640260 in words is "four hundred two billion, six hundred twenty-eight million, six hundred forty thousand, two hundred sixty".