402686810232 has 256 divisors, whose sum is σ = 1248203520000. Its totient is φ = 107971928064.

The previous prime is 402686810213. The next prime is 402686810257. The reversal of 402686810232 is 232018686204.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10014744 + ... + 10054872.

It is an arithmetic number, because the mean of its divisors is an integer number (4875795000).

Almost surely, 2^402686810232 is an apocalyptic number.

402686810232 is a gapful number since it is divisible by the number (42) 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 402686810232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624101760000).

402686810232 is an abundant number, since it is smaller than the sum of its proper divisors (845516709768).

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

402686810232 is a wasteful number, since it uses less digits than its factorization.

402686810232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40235 (or 40217 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 402686810232 in words is "four hundred two billion, six hundred eighty-six million, eight hundred ten thousand, two hundred thirty-two".