30351668 has 6 divisors (see below), whose sum is σ = 53115426. Its totient is φ = 15175832.

The previous prime is 30351667. The next prime is 30351677. The reversal of 30351668 is 86615303.

It can be written as a sum of positive squares in only one way, i.e., 28858384 + 1493284 = 5372^2 + 1222^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30351667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3793955 + ... + 3793962.

It is an arithmetic number, because the mean of its divisors is an integer number (8852571).

Almost surely, 2^30351668 is an apocalyptic number.

It is an amenable number.

30351668 is a deficient number, since it is larger than the sum of its proper divisors (22763758).

30351668 is a wasteful number, since it uses less digits than its factorization.

30351668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7587921 (or 7587919 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30351668 is about 5509.2347926005. The cubic root of 30351668 is about 311.9326640792.

The spelling of 30351668 in words is "thirty million, three hundred fifty-one thousand, six hundred sixty-eight".