307938 has 16 divisors (see below), whose sum is σ = 652320. Its totient is φ = 96576.

The previous prime is 307919. The next prime is 307939. The reversal of 307938 is 839703.

307938 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307939) by changing a digit.

307938 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1408 + ... + 1611.

It is an arithmetic number, because the mean of its divisors is an integer number (40770).

2³⁰⁷⁹³⁸ is an apocalyptic number.

307938 is an abundant number, since it is smaller than the sum of its proper divisors (344382).

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

307938 is a wasteful number, since it uses less digits than its factorization.

307938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 307938 is about 554.9216160865. The cubic root of 307938 is about 67.5286024188.

The spelling of 307938 in words is "three hundred seven thousand, nine hundred thirty-eight".