23204244 has 144 divisors (see below), whose sum is σ = 69457920. Its totient is φ = 5987520.

The previous prime is 23204231. The next prime is 23204249. The reversal of 23204244 is 44240232.

It is a super-2 number, since 2×23204244² = 1076873879223072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23204244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23204249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346299 + ... + 346365.

Almost surely, 2^23204244 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 23204244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34728960).

23204244 is an abundant number, since it is smaller than the sum of its proper divisors (46253676).

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

23204244 is a wasteful number, since it uses less digits than its factorization.

23204244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 129 counting only the distinct ones).

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

The square root of 23204244 is about 4817.0783676415. The cubic root of 23204244 is about 285.2260195380.

Adding to 23204244 its reverse (44240232), we get a palindrome (67444476).

It can be divided in two parts, 2 and 3204244, that added together give a triangular number (3204246 = T₂₅₃₁).

The spelling of 23204244 in words is "twenty-three million, two hundred four thousand, two hundred forty-four".