23342009 has 4 divisors (see below), whose sum is σ = 23573220. Its totient is φ = 23110800.

The previous prime is 23341961. The next prime is 23342017. The reversal of 23342009 is 90024332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20502784 + 2839225 = 4528^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 23342009 - 2²⁴ = 6564793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23342029) 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 3 ways as a sum of consecutive naturals, for example, 115454 + ... + 115655.

It is an arithmetic number, because the mean of its divisors is an integer number (5893305).

Almost surely, 2^23342009 is an apocalyptic number.

It is an amenable number.

23342009 is a deficient number, since it is larger than the sum of its proper divisors (231211).

23342009 is a wasteful number, since it uses less digits than its factorization.

23342009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231210.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23342009 is about 4831.3568487538. The cubic root of 23342009 is about 285.7893741572.

The spelling of 23342009 in words is "twenty-three million, three hundred forty-two thousand, nine".