30658768 has 20 divisors (see below), whose sum is σ = 67887520. Its totient is φ = 13139424.

The previous prime is 30658763. The next prime is 30658781. The reversal of 30658768 is 86785603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30658763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136758 + ... + 136981.

It is an arithmetic number, because the mean of its divisors is an integer number (3394376).

Almost surely, 2^30658768 is an apocalyptic number.

It is an amenable number.

30658768 is an abundant number, since it is smaller than the sum of its proper divisors (37228752).

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

30658768 is a wasteful number, since it uses less digits than its factorization.

30658768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273754 (or 273748 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 30658768 is about 5537.0360302241. The cubic root of 30658768 is about 312.9811867960.

The spelling of 30658768 in words is "thirty million, six hundred fifty-eight thousand, seven hundred sixty-eight".