402088864440 has 64 divisors (see below), whose sum is σ = 1206373059360. Its totient is φ = 107214233600.

The previous prime is 402088864421. The next prime is 402088864451. The reversal of 402088864440 is 44468880204.

It is a self number, because there is not a number n which added to its sum of digits gives 402088864440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1274152 + ... + 1558088.

Almost surely, 2^402088864440 is an apocalyptic number.

402088864440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402088864440 is an abundant number, since it is smaller than the sum of its proper divisors (804284194920).

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

402088864440 is a wasteful number, since it uses less digits than its factorization.

402088864440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295752 (or 295748 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 48.

The spelling of 402088864440 in words is "four hundred two billion, eighty-eight million, eight hundred sixty-four thousand, four hundred forty".