811892030 has 16 divisors (see below), whose sum is σ = 1495392624. Its totient is φ = 317204160.

The previous prime is 811892017. The next prime is 811892047. The reversal of 811892030 is 30298118.

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, 943631 + ... + 944490.

It is an arithmetic number, because the mean of its divisors is an integer number (93462039).

Almost surely, 2^811892030 is an apocalyptic number.

811892030 is a deficient number, since it is larger than the sum of its proper divisors (683500594).

811892030 is a wasteful number, since it uses less digits than its factorization.

811892030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888171.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 811892030 is about 28493.7191324685. The cubic root of 811892030 is about 932.8949870454.

The spelling of 811892030 in words is "eight hundred eleven million, eight hundred ninety-two thousand, thirty".