23421244 has 72 divisors (see below), whose sum is σ = 53387264. Its totient is φ = 8791200.

The previous prime is 23421221. The next prime is 23421253. The reversal of 23421244 is 44212432.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104917 + ... + 105139.

Almost surely, 2^23421244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23421244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26693632).

23421244 is an abundant number, since it is smaller than the sum of its proper divisors (29966020).

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

23421244 is a wasteful number, since it uses less digits than its factorization.

23421244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 274 counting only the distinct ones).

The product of its digits is 1536, while the sum is 22.

The square root of 23421244 is about 4839.5499790786. The cubic root of 23421244 is about 286.1123818700.

Adding to 23421244 its reverse (44212432), we get a palindrome (67633676).

It can be divided in two parts, 234212 and 44, that added together give a 4-th power (234256 = 22⁴).

The spelling of 23421244 in words is "twenty-three million, four hundred twenty-one thousand, two hundred forty-four".