30948666 has 32 divisors (see below), whose sum is σ = 71376768. Its totient is φ = 8762880.

The previous prime is 30948637. The next prime is 30948667. The reversal of 30948666 is 66684903.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (30948667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1486 + ... + 8006.

It is an arithmetic number, because the mean of its divisors is an integer number (2230524).

Almost surely, 2^30948666 is an apocalyptic number.

30948666 is an abundant number, since it is smaller than the sum of its proper divisors (40428102).

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

30948666 is a wasteful number, since it uses less digits than its factorization.

30948666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 30948666 is about 5563.1525235248. The cubic root of 30948666 is about 313.9645719830.

The spelling of 30948666 in words is "thirty million, nine hundred forty-eight thousand, six hundred sixty-six".