23238644 has 24 divisors (see below), whose sum is σ = 47778528. Its totient is φ = 9750240.

The previous prime is 23238629. The next prime is 23238647. The reversal of 23238644 is 44683232.

It is a self number, because there is not a number n which added to its sum of digits gives 23238644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23238647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19742 + ... + 20885.

It is an arithmetic number, because the mean of its divisors is an integer number (1990772).

Almost surely, 2^23238644 is an apocalyptic number.

It is an amenable number.

23238644 is an abundant number, since it is smaller than the sum of its proper divisors (24539884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23238644 is a wasteful number, since it uses less digits than its factorization.

23238644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40655 (or 40653 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 23238644 is about 4820.6476743276. The cubic root of 23238644 is about 285.3668979401.

The spelling of 23238644 in words is "twenty-three million, two hundred thirty-eight thousand, six hundred forty-four".