307844 has 6 divisors (see below), whose sum is σ = 538734. Its totient is φ = 153920.

The previous prime is 307843. The next prime is 307859. The reversal of 307844 is 448703.

It can be written as a sum of positive squares in only one way, i.e., 193600 + 114244 = 440^2 + 338^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307844.

It is not an unprimeable number, because it can be changed into a prime (307843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38477 + ... + 38484.

It is an arithmetic number, because the mean of its divisors is an integer number (89789).

2³⁰⁷⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

307844 is a deficient number, since it is larger than the sum of its proper divisors (230890).

307844 is a wasteful number, since it uses less digits than its factorization.

307844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76965 (or 76963 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 307844 is about 554.8369129753. The cubic root of 307844 is about 67.5217305435.

The spelling of 307844 in words is "three hundred seven thousand, eight hundred forty-four".