307956980 has 12 divisors (see below), whose sum is σ = 646709700. Its totient is φ = 123182784.

The previous prime is 307956973. The next prime is 307956983. The reversal of 307956980 is 89659703.

It can be written as a sum of positive squares in 2 ways, for example, as 116079076 + 191877904 = 10774^2 + 13852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307956983) 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, 7698905 + ... + 7698944.

It is an arithmetic number, because the mean of its divisors is an integer number (53892475).

Almost surely, 2^307956980 is an apocalyptic number.

It is an amenable number.

307956980 is an abundant number, since it is smaller than the sum of its proper divisors (338752720).

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

307956980 is a wasteful number, since it uses less digits than its factorization.

307956980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15397858 (or 15397856 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 307956980 is about 17548.7030859833. The cubic root of 307956980 is about 675.2998978306.

The spelling of 307956980 in words is "three hundred seven million, nine hundred fifty-six thousand, nine hundred eighty".