811338100 has 36 divisors (see below), whose sum is σ = 1772296288. Its totient is φ = 322380000.

The previous prime is 811338091. The next prime is 811338113. The reversal of 811338100 is 1833118.

It is a super-2 number, since 2×811338100² = 1316539025023220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11766 + ... + 41965.

Almost surely, 2^811338100 is an apocalyptic number.

It is an amenable number.

811338100 is an abundant number, since it is smaller than the sum of its proper divisors (960958188).

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

811338100 is a wasteful number, since it uses less digits than its factorization.

811338100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53896 (or 53889 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 811338100 is about 28483.9972616204. The cubic root of 811338100 is about 932.6827765262.

The spelling of 811338100 in words is "eight hundred eleven million, three hundred thirty-eight thousand, one hundred".