23399922 has 64 divisors (see below), whose sum is σ = 61012224. Its totient is φ = 5806080.

The previous prime is 23399921. The next prime is 23399953. The reversal of 23399922 is 22999332.

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

It is not an unprimeable number, because it can be changed into a prime (23399921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8022 + ... + 10542.

It is an arithmetic number, because the mean of its divisors is an integer number (953316).

Almost surely, 2^23399922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23399922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30506112).

23399922 is an abundant number, since it is smaller than the sum of its proper divisors (37612302).

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

23399922 is a wasteful number, since it uses less digits than its factorization.

23399922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563.

The product of its digits is 52488, while the sum is 39.

The square root of 23399922 is about 4837.3465867147. The cubic root of 23399922 is about 286.0255327915.

The spelling of 23399922 in words is "twenty-three million, three hundred ninety-nine thousand, nine hundred twenty-two".