23442569 has 2 divisors, whose sum is σ = 23442570. Its totient is φ = 23442568.

The previous prime is 23442557. The next prime is 23442583. The reversal of 23442569 is 96524432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22090000 + 1352569 = 4700^2 + 1163^2 .

It is a cyclic number.

It is not a de Polignac number, because 23442569 - 2⁴ = 23442553 is a prime.

It is a super-2 number, since 2×23442569² = 1099108082639522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23442509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721284 + 11721285.

It is an arithmetic number, because the mean of its divisors is an integer number (11721285).

Almost surely, 2^23442569 is an apocalyptic number.

It is an amenable number.

23442569 is a deficient number, since it is larger than the sum of its proper divisors (1).

23442569 is an equidigital number, since it uses as much as digits as its factorization.

23442569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 23442569 is about 4841.7526785246. The cubic root of 23442569 is about 286.1991904631.

It can be divided in two parts, 2344 and 2569, that added together give a cube (4913 = 17³).

The spelling of 23442569 in words is "twenty-three million, four hundred forty-two thousand, five hundred sixty-nine".