30814892 has 12 divisors (see below), whose sum is σ = 55073760. Its totient is φ = 15079536.

The previous prime is 30814891. The next prime is 30814909. The reversal of 30814892 is 29841803.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30814891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81767 + ... + 82142.

It is an arithmetic number, because the mean of its divisors is an integer number (4589480).

Almost surely, 2^30814892 is an apocalyptic number.

It is an amenable number.

30814892 is a deficient number, since it is larger than the sum of its proper divisors (24258868).

30814892 is a wasteful number, since it uses less digits than its factorization.

30814892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163960 (or 163958 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 30814892 is about 5551.1162841360. The cubic root of 30814892 is about 313.5115534577.

The spelling of 30814892 in words is "thirty million, eight hundred fourteen thousand, eight hundred ninety-two".