309944984 has 16 divisors (see below), whose sum is σ = 582270120. Its totient is φ = 154672960.

The previous prime is 309944981. The next prime is 309945001. The reversal of 309944984 is 489449903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309944981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33014 + ... + 41349.

Almost surely, 2^309944984 is an apocalyptic number.

It is an amenable number.

309944984 is a deficient number, since it is larger than the sum of its proper divisors (272325136).

309944984 is a wasteful number, since it uses less digits than its factorization.

309944984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74890 (or 74886 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 309944984 is about 17605.2544429213. The cubic root of 309944984 is about 676.7499059865.

The spelling of 309944984 in words is "three hundred nine million, nine hundred forty-four thousand, nine hundred eighty-four".