30707980 has 24 divisors (see below), whose sum is σ = 66568320. Its totient is φ = 11886720.

The previous prime is 30707959. The next prime is 30707981. The reversal of 30707980 is 8970703.

It is not an unprimeable number, because it can be changed into a prime (30707981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24145 + ... + 25384.

It is an arithmetic number, because the mean of its divisors is an integer number (2773680).

Almost surely, 2^30707980 is an apocalyptic number.

It is an amenable number.

30707980 is an abundant number, since it is smaller than the sum of its proper divisors (35860340).

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

30707980 is a wasteful number, since it uses less digits than its factorization.

30707980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49569 (or 49567 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 30707980 is about 5541.4781421567. The cubic root of 30707980 is about 313.1485581270.

The spelling of 30707980 in words is "thirty million, seven hundred seven thousand, nine hundred eighty".