23140339 has 4 divisors (see below), whose sum is σ = 23187960. Its totient is φ = 23092720.

The previous prime is 23140319. The next prime is 23140357. The reversal of 23140339 is 93304132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23140339 - 2¹³ = 23132147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23140319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23074 + ... + 24055.

It is an arithmetic number, because the mean of its divisors is an integer number (5796990).

Almost surely, 2^23140339 is an apocalyptic number.

23140339 is a deficient number, since it is larger than the sum of its proper divisors (47621).

23140339 is an equidigital number, since it uses as much as digits as its factorization.

23140339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47620.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 23140339 is about 4810.4406243088. The cubic root of 23140339 is about 284.9639392150.

The spelling of 23140339 in words is "twenty-three million, one hundred forty thousand, three hundred thirty-nine".