23404449 has 16 divisors (see below), whose sum is σ = 32145408. Its totient is φ = 15139152.

The previous prime is 23404441. The next prime is 23404453. The reversal of 23404449 is 94440432.

It is not a de Polignac number, because 23404449 - 2³ = 23404441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23404441) 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 15 ways as a sum of consecutive naturals, for example, 17254 + ... + 18560.

It is an arithmetic number, because the mean of its divisors is an integer number (2009088).

Almost surely, 2^23404449 is an apocalyptic number.

It is an amenable number.

23404449 is a deficient number, since it is larger than the sum of its proper divisors (8740959).

23404449 is a wasteful number, since it uses less digits than its factorization.

23404449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 23404449 is about 4837.8144859017. The cubic root of 23404449 is about 286.0439766435.

The spelling of 23404449 in words is "twenty-three million, four hundred four thousand, four hundred forty-nine".