811738332 has 36 divisors (see below), whose sum is σ = 2053132536. Its totient is φ = 270416160.

The previous prime is 811738331. The next prime is 811738339. The reversal of 811738332 is 233837118.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811738331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63678 + ... + 75354.

Almost surely, 2^811738332 is an apocalyptic number.

It is an amenable number.

811738332 is an abundant number, since it is smaller than the sum of its proper divisors (1241394204).

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

811738332 is a wasteful number, since it uses less digits than its factorization.

811738332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13618 (or 13613 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 811738332 is about 28491.0219542929. The cubic root of 811738332 is about 932.8361150373.

The spelling of 811738332 in words is "eight hundred eleven million, seven hundred thirty-eight thousand, three hundred thirty-two".