30190868 has 6 divisors (see below), whose sum is σ = 52834026. Its totient is φ = 15095432.

The previous prime is 30190843. The next prime is 30190903. The reversal of 30190868 is 86809103.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 14730244 = 3932^2 + 3838^2 .

It is a super-2 number, since 2×30190868² = 1822977021186848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3773855 + ... + 3773862.

It is an arithmetic number, because the mean of its divisors is an integer number (8805671).

Almost surely, 2^30190868 is an apocalyptic number.

It is an amenable number.

30190868 is a deficient number, since it is larger than the sum of its proper divisors (22643158).

30190868 is a wasteful number, since it uses less digits than its factorization.

30190868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7547721 (or 7547719 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 30190868 is about 5494.6217340232. The cubic root of 30190868 is about 311.3808260639.

The spelling of 30190868 in words is "thirty million, one hundred ninety thousand, eight hundred sixty-eight".