30808790 has 16 divisors (see below), whose sum is σ = 56955312. Its totient is φ = 11990304.

The previous prime is 30808763. The next prime is 30808807. The reversal of 30808790 is 9780803.

It is a self number, because there is not a number n which added to its sum of digits gives 30808790.

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, 41264 + ... + 42003.

It is an arithmetic number, because the mean of its divisors is an integer number (3559707).

Almost surely, 2^30808790 is an apocalyptic number.

30808790 is a deficient number, since it is larger than the sum of its proper divisors (26146522).

30808790 is a wasteful number, since it uses less digits than its factorization.

30808790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83311.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 30808790 is about 5550.5666377407. The cubic root of 30808790 is about 313.4908581200.

The spelling of 30808790 in words is "thirty million, eight hundred eight thousand, seven hundred ninety".