2309320 has 32 divisors (see below), whose sum is σ = 5596920. Its totient is φ = 852480.

The previous prime is 2309303. The next prime is 2309323. The reversal of 2309320 is 239032.

It can be written as a sum of positive squares in 4 ways, for example, as 1313316 + 996004 = 1146^2 + 998^2 .

It is not an unprimeable number, because it can be changed into a prime (2309323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701 + ... + 2740.

2^2309320 is an apocalyptic number.

2309320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2309320 is an abundant number, since it is smaller than the sum of its proper divisors (3287600).

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

2309320 is a wasteful number, since it uses less digits than its factorization.

2309320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465 (or 4461 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2309320 is about 1519.6446953153. The cubic root of 2309320 is about 132.1786683699.

The spelling of 2309320 in words is "two million, three hundred nine thousand, three hundred twenty".