811372032 has 80 divisors (see below), whose sum is σ = 2401758480. Its totient is φ = 270452736.

The previous prime is 811372027. The next prime is 811372033. The reversal of 811372032 is 230273118.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 811371987 and 811372005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811372033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15523 + ... + 43170.

It is an arithmetic number, because the mean of its divisors is an integer number (30021981).

Almost surely, 2^811372032 is an apocalyptic number.

It is an amenable number.

811372032 is an abundant number, since it is smaller than the sum of its proper divisors (1590386448).

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

811372032 is an equidigital number, since it uses as much as digits as its factorization.

811372032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58720 (or 58698 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 811372032 is about 28484.5928880860. The cubic root of 811372032 is about 932.6957786481.

The spelling of 811372032 in words is "eight hundred eleven million, three hundred seventy-two thousand, thirty-two".