402917130880 has 128 divisors (see below), whose sum is σ = 1052217475200. Its totient is φ = 146316226560.

The previous prime is 402917130853. The next prime is 402917130881. The reversal of 402917130880 is 88031719204.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (402917130881) 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, 5192206 + ... + 5269234.

It is an arithmetic number, because the mean of its divisors is an integer number (8220449025).

Almost surely, 2^402917130880 is an apocalyptic number.

402917130880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402917130880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526108737600).

402917130880 is an abundant number, since it is smaller than the sum of its proper divisors (649300344320).

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

402917130880 is a wasteful number, since it uses less digits than its factorization.

402917130880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77802 (or 77790 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 402917130880 in words is "four hundred two billion, nine hundred seventeen million, one hundred thirty thousand, eight hundred eighty".