309104 has 10 divisors (see below), whose sum is σ = 598920. Its totient is φ = 154544.

The previous prime is 309091. The next prime is 309107. The reversal of 309104 is 401903.

It is an Ulam number.

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 309104.

It is not an unprimeable number, because it can be changed into a prime (309107) by changing a digit.

309104 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 as a sum of consecutive naturals, namely, 9644 + ... + 9675.

It is an arithmetic number, because the mean of its divisors is an integer number (59892).

2³⁰⁹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

309104 is a deficient number, since it is larger than the sum of its proper divisors (289816).

309104 is a wasteful number, since it uses less digits than its factorization.

309104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19327 (or 19321 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 309104 is about 555.9712222768. The cubic root of 309104 is about 67.6137268904.

The spelling of 309104 in words is "three hundred nine thousand, one hundred four".