30018648 has 48 divisors (see below), whose sum is σ = 82497240. Its totient is φ = 9095680.

The previous prime is 30018647. The next prime is 30018679. The reversal of 30018648 is 84681003.

It is a happy number.

It is a super-2 number, since 2×30018648² = 1802238455495808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30018647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2265 + ... + 8072.

Almost surely, 2^30018648 is an apocalyptic number.

It is an amenable number.

30018648 is an abundant number, since it is smaller than the sum of its proper divisors (52478592).

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

30018648 is a wasteful number, since it uses less digits than its factorization.

30018648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10368 (or 10353 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 30018648 is about 5478.9276323018. The cubic root of 30018648 is about 310.7876191176.

The spelling of 30018648 in words is "thirty million, eighteen thousand, six hundred forty-eight".