309374 has 16 divisors (see below), whose sum is σ = 509712. Its totient is φ = 139968.

The previous prime is 309371. The next prime is 309391. The reversal of 309374 is 473903.

309374 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 309374.

It is not an unprimeable number, because it can be changed into a prime (309371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1817 + ... + 1979.

It is an arithmetic number, because the mean of its divisors is an integer number (31857).

2³⁰⁹³⁷⁴ is an apocalyptic number.

309374 is a deficient number, since it is larger than the sum of its proper divisors (200338).

309374 is a wasteful number, since it uses less digits than its factorization.

309374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 309374 is about 556.2139875983. The cubic root of 309374 is about 67.6334078537.

The spelling of 309374 in words is "three hundred nine thousand, three hundred seventy-four".