23742339 has 4 divisors (see below), whose sum is σ = 31656456. Its totient is φ = 15828224.

The previous prime is 23742293. The next prime is 23742361. The reversal of 23742339 is 93324732.

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 23742339 - 2¹⁷ = 23611267 is a prime.

It is a super-2 number, since 2×23742339² = 1127397322381842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23742139) 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, 3957054 + ... + 3957059.

It is an arithmetic number, because the mean of its divisors is an integer number (7914114).

Almost surely, 2^23742339 is an apocalyptic number.

23742339 is a deficient number, since it is larger than the sum of its proper divisors (7914117).

23742339 is an equidigital number, since it uses as much as digits as its factorization.

23742339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7914116.

The product of its digits is 27216, while the sum is 33.

The square root of 23742339 is about 4872.6111069939. The cubic root of 23742339 is about 287.4139437459.

The spelling of 23742339 in words is "twenty-three million, seven hundred forty-two thousand, three hundred thirty-nine".