23213244 has 12 divisors (see below), whose sum is σ = 54164264. Its totient is φ = 7737744.

The previous prime is 23213243. The next prime is 23213261. The reversal of 23213244 is 44231232.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 23213244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967207 + ... + 967230.

Almost surely, 2^23213244 is an apocalyptic number.

It is an amenable number.

23213244 is an abundant number, since it is smaller than the sum of its proper divisors (30951020).

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

23213244 is a wasteful number, since it uses less digits than its factorization.

23213244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934444 (or 1934442 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 23213244 is about 4818.0124532840. The cubic root of 23213244 is about 285.2628907007.

Adding to 23213244 its reverse (44231232), we get a palindrome (67444476).

It can be divided in two parts, 2321 and 3244, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 23213244 in words is "twenty-three million, two hundred thirteen thousand, two hundred forty-four".