309044232 has 96 divisors (see below), whose sum is σ = 959662080. Its totient is φ = 88012800.

The previous prime is 309044227. The next prime is 309044233. The reversal of 309044232 is 232440903.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 309044196 and 309044205.

It is not an unprimeable number, because it can be changed into a prime (309044233) 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 23 ways as a sum of consecutive naturals, for example, 192232 + ... + 193832.

It is an arithmetic number, because the mean of its divisors is an integer number (9996480).

Almost surely, 2^309044232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 309044232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479831040).

309044232 is an abundant number, since it is smaller than the sum of its proper divisors (650617848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

309044232 is a wasteful number, since it uses less digits than its factorization.

309044232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 309044232 is about 17579.6539215082. The cubic root of 309044232 is about 676.0936870491.

The spelling of 309044232 in words is "three hundred nine million, forty-four thousand, two hundred thirty-two".