23242249 has 4 divisors (see below), whose sum is σ = 23680836. Its totient is φ = 22803664.

The previous prime is 23242223. The next prime is 23242273. The reversal of 23242249 is 94224232.

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 21160000 + 2082249 = 4600^2 + 1443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23242249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23242279) 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, 219214 + ... + 219319.

It is an arithmetic number, because the mean of its divisors is an integer number (5920209).

Almost surely, 2^23242249 is an apocalyptic number.

It is an amenable number.

23242249 is a deficient number, since it is larger than the sum of its proper divisors (438587).

23242249 is an equidigital number, since it uses as much as digits as its factorization.

23242249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438586.

The product of its digits is 6912, while the sum is 28.

The square root of 23242249 is about 4821.0215722396. The cubic root of 23242249 is about 285.3816534550.

The spelling of 23242249 in words is "twenty-three million, two hundred forty-two thousand, two hundred forty-nine".