307989980 has 12 divisors (see below), whose sum is σ = 646779000. Its totient is φ = 123195984.

The previous prime is 307989949. The next prime is 307990031. The reversal of 307989980 is 89989703.

It is a congruent number.

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, 7699730 + ... + 7699769.

It is an arithmetic number, because the mean of its divisors is an integer number (53898250).

Almost surely, 2^307989980 is an apocalyptic number.

It is an amenable number.

307989980 is an abundant number, since it is smaller than the sum of its proper divisors (338789020).

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

307989980 is a wasteful number, since it uses less digits than its factorization.

307989980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15399508 (or 15399506 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 307989980 is about 17549.6433012184. The cubic root of 307989980 is about 675.3240181916.

The spelling of 307989980 in words is "three hundred seven million, nine hundred eighty-nine thousand, nine hundred eighty".