30927980 has 12 divisors (see below), whose sum is σ = 64948800. Its totient is φ = 12371184.

The previous prime is 30927973. The next prime is 30927997. The reversal of 30927980 is 8972903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773180 + ... + 773219.

It is an arithmetic number, because the mean of its divisors is an integer number (5412400).

Almost surely, 2^30927980 is an apocalyptic number.

It is an amenable number.

30927980 is an abundant number, since it is smaller than the sum of its proper divisors (34020820).

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

30927980 is a wasteful number, since it uses less digits than its factorization.

30927980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546408 (or 1546406 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 30927980 is about 5561.2930151180. The cubic root of 30927980 is about 313.8946053843.

The spelling of 30927980 in words is "thirty million, nine hundred twenty-seven thousand, nine hundred eighty".