23444040 has 64 divisors (see below), whose sum is σ = 71251200. Its totient is φ = 6170112.

The previous prime is 23444009. The next prime is 23444053. The reversal of 23444040 is 4044432.

It is a junction number, because it is equal to n+sod(n) for n = 23443998 and 23444016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8244 + ... + 10716.

It is an arithmetic number, because the mean of its divisors is an integer number (1113300).

Almost surely, 2^23444040 is an apocalyptic number.

23444040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23444040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35625600).

23444040 is an abundant number, since it is smaller than the sum of its proper divisors (47807160).

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

23444040 is a wasteful number, since it uses less digits than its factorization.

23444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 23444040 is about 4841.9045839421. The cubic root of 23444040 is about 286.2051765847.

Adding to 23444040 its reverse (4044432), we get a palindrome (27488472).

The spelling of 23444040 in words is "twenty-three million, four hundred forty-four thousand, forty".