30818404 has 12 divisors (see below), whose sum is σ = 53984700. Its totient is φ = 15394208.

The previous prime is 30818369. The next prime is 30818407. The reversal of 30818404 is 40481803.

It can be written as a sum of positive squares in 2 ways, for example, as 22581504 + 8236900 = 4752^2 + 2870^2 .

It is not an unprimeable number, because it can be changed into a prime (30818407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782 + ... + 8050.

It is an arithmetic number, because the mean of its divisors is an integer number (4498725).

Almost surely, 2^30818404 is an apocalyptic number.

It is an amenable number.

30818404 is a deficient number, since it is larger than the sum of its proper divisors (23166296).

30818404 is a wasteful number, since it uses less digits than its factorization.

30818404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7502 (or 7500 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 30818404 is about 5551.4326078950. The cubic root of 30818404 is about 313.5234633999.

The spelling of 30818404 in words is "thirty million, eight hundred eighteen thousand, four hundred four".