23649790 has 16 divisors (see below), whose sum is σ = 44038080. Its totient is φ = 9133600.

The previous prime is 23649763. The next prime is 23649797. The reversal of 23649790 is 9794632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23649797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40486 + ... + 41065.

It is an arithmetic number, because the mean of its divisors is an integer number (2752380).

Almost surely, 2^23649790 is an apocalyptic number.

23649790 is a deficient number, since it is larger than the sum of its proper divisors (20388290).

23649790 is a wasteful number, since it uses less digits than its factorization.

23649790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81587.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 23649790 is about 4863.1049752190. The cubic root of 23649790 is about 287.0400054307.

The spelling of 23649790 in words is "twenty-three million, six hundred forty-nine thousand, seven hundred ninety".