23649249 has 24 divisors (see below), whose sum is σ = 35144256. Its totient is φ = 14061600.

The previous prime is 23649233. The next prime is 23649271. The reversal of 23649249 is 94294632.

It is not a de Polignac number, because 23649249 - 2⁴ = 23649233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23649209) 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, 37164 + ... + 37794.

It is an arithmetic number, because the mean of its divisors is an integer number (1464344).

Almost surely, 2^23649249 is an apocalyptic number.

It is an amenable number.

23649249 is a deficient number, since it is larger than the sum of its proper divisors (11495007).

23649249 is a wasteful number, since it uses less digits than its factorization.

23649249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 678 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 23649249 is about 4863.0493520013. The cubic root of 23649249 is about 287.0378166892.

The spelling of 23649249 in words is "twenty-three million, six hundred forty-nine thousand, two hundred forty-nine".