309230952 has 128 divisors (see below), whose sum is σ = 882524160. Its totient is φ = 89717760.

The previous prime is 309230951. The next prime is 309230959. The reversal of 309230952 is 259032903.

309230952 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (309230951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290373 + ... + 291435.

It is an arithmetic number, because the mean of its divisors is an integer number (6894720).

Almost surely, 2^309230952 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 309230952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441262080).

309230952 is an abundant number, since it is smaller than the sum of its proper divisors (573293208).

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

309230952 is a wasteful number, since it uses less digits than its factorization.

309230952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 309230952 is about 17584.9638043415. The cubic root of 309230952 is about 676.2298216048.

The spelling of 309230952 in words is "three hundred nine million, two hundred thirty thousand, nine hundred fifty-two".