808531388 has 12 divisors (see below), whose sum is σ = 1617062832. Its totient is φ = 346513440.

The previous prime is 808531387. The next prime is 808531421. The reversal of 808531388 is 883135808.

808531388 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808531387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14438033 + ... + 14438088.

It is an arithmetic number, because the mean of its divisors is an integer number (134755236).

Almost surely, 2^808531388 is an apocalyptic number.

It is an amenable number.

808531388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

808531388 is a wasteful number, since it uses less digits than its factorization.

808531388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28876132 (or 28876130 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 808531388 is about 28434.6863531146. The cubic root of 808531388 is about 931.6060382496.

The spelling of 808531388 in words is "eight hundred eight million, five hundred thirty-one thousand, three hundred eighty-eight".