30387190 has 16 divisors (see below), whose sum is σ = 55262592. Its totient is φ = 12029184.

The previous prime is 30387187. The next prime is 30387293. The reversal of 30387190 is 9178303.

It is a super-2 number, since 2×30387190² = 1846762632192200, 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 in 7 ways as a sum of consecutive naturals, for example, 14694 + ... + 16633.

It is an arithmetic number, because the mean of its divisors is an integer number (3453912).

Almost surely, 2^30387190 is an apocalyptic number.

30387190 is a deficient number, since it is larger than the sum of its proper divisors (24875402).

30387190 is a wasteful number, since it uses less digits than its factorization.

30387190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31431.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 30387190 is about 5512.4577095883. The cubic root of 30387190 is about 312.0543065123.

The spelling of 30387190 in words is "thirty million, three hundred eighty-seven thousand, one hundred ninety".