805881372 has 24 divisors (see below), whose sum is σ = 1887336192. Its totient is φ = 267634800.

The previous prime is 805881331. The next prime is 805881389. The reversal of 805881372 is 273188508.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120654 + ... + 127157.

It is an arithmetic number, because the mean of its divisors is an integer number (78639008).

Almost surely, 2^805881372 is an apocalyptic number.

It is an amenable number.

805881372 is an abundant number, since it is smaller than the sum of its proper divisors (1081454820).

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

805881372 is a wasteful number, since it uses less digits than its factorization.

805881372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248089 (or 248087 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 805881372 is about 28388.0498097351. The cubic root of 805881372 is about 930.5871237695.

The spelling of 805881372 in words is "eight hundred five million, eight hundred eighty-one thousand, three hundred seventy-two".