23201244 has 72 divisors (see below), whose sum is σ = 65585520. Its totient is φ = 6854400.

The previous prime is 23201197. The next prime is 23201251. The reversal of 23201244 is 44210232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15522 + ... + 16950.

It is an arithmetic number, because the mean of its divisors is an integer number (910910).

Almost surely, 2^23201244 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 23201244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32792760).

23201244 is an abundant number, since it is smaller than the sum of its proper divisors (42384276).

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

23201244 is a wasteful number, since it uses less digits than its factorization.

23201244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 23201244 is about 4816.7669655071. The cubic root of 23201244 is about 285.2137270318.

Adding to 23201244 its reverse (44210232), we get a palindrome (67411476).

The spelling of 23201244 in words is "twenty-three million, two hundred one thousand, two hundred forty-four".