30247912 has 8 divisors (see below), whose sum is σ = 56714850. Its totient is φ = 15123952.

The previous prime is 30247891. The next prime is 30247927. The reversal of 30247912 is 21974203.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 7150276 = 4806^2 + 2674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890487 + ... + 1890502.

Almost surely, 2^30247912 is an apocalyptic number.

It is an amenable number.

30247912 is a deficient number, since it is larger than the sum of its proper divisors (26466938).

30247912 is a wasteful number, since it uses less digits than its factorization.

30247912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780995 (or 3780991 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30247912 is about 5499.8101785425. The cubic root of 30247912 is about 311.5768150468.

The spelling of 30247912 in words is "thirty million, two hundred forty-seven thousand, nine hundred twelve".