23240449 has 2 divisors, whose sum is σ = 23240450. Its totient is φ = 23240448.

The previous prime is 23240443. The next prime is 23240453. The reversal of 23240449 is 94404232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11950849 + 11289600 = 3457^2 + 3360^2 .

It is a cyclic number.

It is not a de Polignac number, because 23240449 - 2⁵ = 23240417 is a prime.

It is not a weakly prime, because it can be changed into another prime (23240443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11620224 + 11620225.

It is an arithmetic number, because the mean of its divisors is an integer number (11620225).

Almost surely, 2^23240449 is an apocalyptic number.

It is an amenable number.

23240449 is a deficient number, since it is larger than the sum of its proper divisors (1).

23240449 is an equidigital number, since it uses as much as digits as its factorization.

23240449 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23240449 is about 4820.8348861997. The cubic root of 23240449 is about 285.3742861210.

The spelling of 23240449 in words is "twenty-three million, two hundred forty thousand, four hundred forty-nine".