307331942 has 4 divisors (see below), whose sum is σ = 460997916. Its totient is φ = 153665970.

The previous prime is 307331939. The next prime is 307331951. The reversal of 307331942 is 249133703.

307331942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 307331899 and 307331908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76832984 + ... + 76832987.

It is an arithmetic number, because the mean of its divisors is an integer number (115249479).

Almost surely, 2^307331942 is an apocalyptic number.

307331942 is a deficient number, since it is larger than the sum of its proper divisors (153665974).

307331942 is a wasteful number, since it uses less digits than its factorization.

307331942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153665973.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 307331942 is about 17530.8853741048. The cubic root of 307331942 is about 674.8427192765.

The spelling of 307331942 in words is "three hundred seven million, three hundred thirty-one thousand, nine hundred forty-two".