23944401 has 24 divisors (see below), whose sum is σ = 38536680. Its totient is φ = 14224896.

The previous prime is 23944397. The next prime is 23944409. The reversal of 23944401 is 10444932.

It can be written as a sum of positive squares in 4 ways, for example, as 7420176 + 16524225 = 2724^2 + 4065^2 .

It is not a de Polignac number, because 23944401 - 2² = 23944397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23944409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (1605695).

Almost surely, 2^23944401 is an apocalyptic number.

It is an amenable number.

23944401 is a deficient number, since it is larger than the sum of its proper divisors (14592279).

23944401 is a wasteful number, since it uses less digits than its factorization.

23944401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7105 (or 7102 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23944401 is about 4893.3016461281. The cubic root of 23944401 is about 288.2269984080.

The spelling of 23944401 in words is "twenty-three million, nine hundred forty-four thousand, four hundred one".