30188804 has 12 divisors (see below), whose sum is σ = 55938204. Its totient is φ = 14206464.

The previous prime is 30188803. The next prime is 30188827. The reversal of 30188804 is 40888103.

It can be written as a sum of positive squares in 2 ways, for example, as 21603904 + 8584900 = 4648^2 + 2930^2 .

It is a super-2 number, since 2×30188804² = 1822727773900832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30188803) 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, 221909 + ... + 222044.

It is an arithmetic number, because the mean of its divisors is an integer number (4661517).

Almost surely, 2^30188804 is an apocalyptic number.

30188804 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30188804 is a deficient number, since it is larger than the sum of its proper divisors (25749400).

30188804 is a wasteful number, since it uses less digits than its factorization.

30188804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443974 (or 443972 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 30188804 is about 5494.4339107864. The cubic root of 30188804 is about 311.3737300477.

The spelling of 30188804 in words is "thirty million, one hundred eighty-eight thousand, eight hundred four".