30609968 has 10 divisors (see below), whose sum is σ = 59306844. Its totient is φ = 15304976.

The previous prime is 30609961. The next prime is 30609973. The reversal of 30609968 is 86990603.

It is a super-2 number, since 2×30609968² = 1873940281922048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30609961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956546 + ... + 956577.

Almost surely, 2^30609968 is an apocalyptic number.

It is an amenable number.

30609968 is a deficient number, since it is larger than the sum of its proper divisors (28696876).

30609968 is a wasteful number, since it uses less digits than its factorization.

30609968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913131 (or 1913125 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 30609968 is about 5532.6275855149. The cubic root of 30609968 is about 312.8150397332.

The spelling of 30609968 in words is "thirty million, six hundred nine thousand, nine hundred sixty-eight".