23189649 has 24 divisors (see below), whose sum is σ = 37547328. Its totient is φ = 12468480.

The previous prime is 23189623. The next prime is 23189653. The reversal of 23189649 is 94698132.

It is not a de Polignac number, because 23189649 - 2⁸ = 23189393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23189649.

It is not an unprimeable number, because it can be changed into a prime (23189689) 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 in 23 ways as a sum of consecutive naturals, for example, 4159 + ... + 7979.

It is an arithmetic number, because the mean of its divisors is an integer number (1564472).

Almost surely, 2^23189649 is an apocalyptic number.

It is an amenable number.

23189649 is a deficient number, since it is larger than the sum of its proper divisors (14357679).

23189649 is a wasteful number, since it uses less digits than its factorization.

23189649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865 (or 3848 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 23189649 is about 4815.5632069364. The cubic root of 23189649 is about 285.1662065307.

The spelling of 23189649 in words is "twenty-three million, one hundred eighty-nine thousand, six hundred forty-nine".