2309431 has 8 divisors (see below), whose sum is σ = 2447280. Its totient is φ = 2173248.

The previous prime is 2309413. The next prime is 2309441. The reversal of 2309431 is 1349032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2309431 - 2⁷ = 2309303 is a prime.

It is a super-2 number, since 2×2309431² = 10666943087522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309441) 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 7 ways as a sum of consecutive naturals, for example, 3435 + ... + 4051.

It is an arithmetic number, because the mean of its divisors is an integer number (305910).

2^2309431 is an apocalyptic number.

2309431 is a deficient number, since it is larger than the sum of its proper divisors (137849).

2309431 is a wasteful number, since it uses less digits than its factorization.

2309431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 2309431 is about 1519.6812165714. The cubic root of 2309431 is about 132.1807861069.

The spelling of 2309431 in words is "two million, three hundred nine thousand, four hundred thirty-one".