23444442 has 72 divisors (see below), whose sum is σ = 62244000. Its totient is φ = 6341328.

The previous prime is 23444431. The next prime is 23444467. The reversal of 23444442 is 24444432.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16059 + ... + 17457.

It is an arithmetic number, because the mean of its divisors is an integer number (864500).

Almost surely, 2^23444442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23444442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31122000).

23444442 is an abundant number, since it is smaller than the sum of its proper divisors (38799558).

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

23444442 is a wasteful number, since it uses less digits than its factorization.

23444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1430 counting only the distinct ones).

The product of its digits is 12288, while the sum is 27.

The square root of 23444442 is about 4841.9460963542. The cubic root of 23444442 is about 286.2068124493.

Adding to 23444442 its reverse (24444432), we get a palindrome (47888874).

It can be divided in two parts, 2344 and 4442, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 23444442 in words is "twenty-three million, four hundred forty-four thousand, four hundred forty-two".