30387612 has 24 divisors (see below), whose sum is σ = 74636800. Its totient is φ = 9596016.

The previous prime is 30387611. The next prime is 30387641. The reversal of 30387612 is 21678303.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30387612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30387611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66412 + ... + 66867.

Almost surely, 2^30387612 is an apocalyptic number.

It is an amenable number.

30387612 is an abundant number, since it is smaller than the sum of its proper divisors (44249188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30387612 is a wasteful number, since it uses less digits than its factorization.

30387612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133305 (or 133303 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 30387612 is about 5512.4959863931. The cubic root of 30387612 is about 312.0557510498.

The spelling of 30387612 in words is "thirty million, three hundred eighty-seven thousand, six hundred twelve".