811242204 has 24 divisors (see below), whose sum is σ = 1894784640. Its totient is φ = 270144624.

The previous prime is 811242197. The next prime is 811242247. The reversal of 811242204 is 402242118.

It is a super-2 number, since 2×811242204² = 1316227827101555232, which contains 22 as substring.

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, 20944 + ... + 45399.

It is an arithmetic number, because the mean of its divisors is an integer number (78949360).

Almost surely, 2^811242204 is an apocalyptic number.

It is an amenable number.

811242204 is an abundant number, since it is smaller than the sum of its proper divisors (1083542436).

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

811242204 is a wasteful number, since it uses less digits than its factorization.

811242204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67369 (or 67367 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 811242204 is about 28482.3138807225. The cubic root of 811242204 is about 932.6460289723.

The spelling of 811242204 in words is "eight hundred eleven million, two hundred forty-two thousand, two hundred four".