30616868 has 6 divisors (see below), whose sum is σ = 53579526. Its totient is φ = 15308432.

The previous prime is 30616867. The next prime is 30616877. The reversal of 30616868 is 86861603.

It can be written as a sum of positive squares in only one way, i.e., 24226084 + 6390784 = 4922^2 + 2528^2 .

It is a super-2 number, since 2×30616868² = 1874785212258848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30616867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3827105 + ... + 3827112.

It is an arithmetic number, because the mean of its divisors is an integer number (8929921).

Almost surely, 2^30616868 is an apocalyptic number.

It is an amenable number.

30616868 is a deficient number, since it is larger than the sum of its proper divisors (22962658).

30616868 is a wasteful number, since it uses less digits than its factorization.

30616868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7654221 (or 7654219 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 30616868 is about 5533.2511238873. The cubic root of 30616868 is about 312.8385425522.

The spelling of 30616868 in words is "thirty million, six hundred sixteen thousand, eight hundred sixty-eight".