23572224 has 108 divisors (see below), whose sum is σ = 73285576. Its totient is φ = 7243776.

The previous prime is 23572193. The next prime is 23572243. The reversal of 23572224 is 42227532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29559 + ... + 30345.

Almost surely, 2^23572224 is an apocalyptic number.

23572224 is a gapful number since it is divisible by the number (24) 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 23572224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36642788).

23572224 is an abundant number, since it is smaller than the sum of its proper divisors (49713352).

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

23572224 is a wasteful number, since it uses less digits than its factorization.

23572224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 805 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 23572224 is about 4855.1234793772. The cubic root of 23572224 is about 286.7258528115.

Adding to 23572224 its reverse (42227532), we get a palindrome (65799756).

The spelling of 23572224 in words is "twenty-three million, five hundred seventy-two thousand, two hundred twenty-four".