23442789 has 16 divisors (see below), whose sum is σ = 33966080. Its totient is φ = 14327280.

The previous prime is 23442781. The next prime is 23442821. The reversal of 23442789 is 98724432.

It is not a de Polignac number, because 23442789 - 2³ = 23442781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23442781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4867 + ... + 8400.

It is an arithmetic number, because the mean of its divisors is an integer number (2122880).

Almost surely, 2^23442789 is an apocalyptic number.

It is an amenable number.

23442789 is a deficient number, since it is larger than the sum of its proper divisors (10523291).

23442789 is a wasteful number, since it uses less digits than its factorization.

23442789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13320.

The product of its digits is 96768, while the sum is 39.

The square root of 23442789 is about 4841.7753975169. The cubic root of 23442789 is about 286.2000857522.

The spelling of 23442789 in words is "twenty-three million, four hundred forty-two thousand, seven hundred eighty-nine".