402560104128 has 112 divisors (see below), whose sum is σ = 1310900908800. Its totient is φ = 106169693184.

The previous prime is 402560104127. The next prime is 402560104181. The reversal of 402560104128 is 821401065204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (402560104127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11502678 + ... + 11537621.

It is an arithmetic number, because the mean of its divisors is an integer number (11704472400).

Almost surely, 2^402560104128 is an apocalyptic number.

402560104128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

402560104128 is an abundant number, since it is smaller than the sum of its proper divisors (908340804672).

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

402560104128 is a wasteful number, since it uses less digits than its factorization.

402560104128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23040334 (or 23040324 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 402560104128 in words is "four hundred two billion, five hundred sixty million, one hundred four thousand, one hundred twenty-eight".