814881930 has 16 divisors (see below), whose sum is σ = 1955716704. Its totient is φ = 217301840.

The previous prime is 814881923. The next prime is 814881959. The reversal of 814881930 is 39188418.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13581336 + ... + 13581395.

It is an arithmetic number, because the mean of its divisors is an integer number (122232294).

Almost surely, 2^814881930 is an apocalyptic number.

814881930 is an abundant number, since it is smaller than the sum of its proper divisors (1140834774).

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

814881930 is a wasteful number, since it uses less digits than its factorization.

814881930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27162741.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 814881930 is about 28546.1368664834. The cubic root of 814881930 is about 934.0387539765.

The spelling of 814881930 in words is "eight hundred fourteen million, eight hundred eighty-one thousand, nine hundred thirty".