307940 has 24 divisors (see below), whose sum is σ = 657720. Its totient is φ = 121088.

The previous prime is 307939. The next prime is 307969. The reversal of 307940 is 49703.

It can be written as a sum of positive squares in 4 ways, for example, as 45796 + 262144 = 214^2 + 512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1694 + ... + 1866.

It is an arithmetic number, because the mean of its divisors is an integer number (27405).

2³⁰⁷⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

307940 is an abundant number, since it is smaller than the sum of its proper divisors (349780).

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

307940 is a wasteful number, since it uses less digits than its factorization.

307940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 307940 is about 554.9234181398. The cubic root of 307940 is about 67.5287486137.

The spelling of 307940 in words is "three hundred seven thousand, nine hundred forty".