23244021 has 12 divisors (see below), whose sum is σ = 33703020. Its totient is φ = 15436800.

The previous prime is 23243999. The next prime is 23244031. The reversal of 23244021 is 12044232.

It can be written as a sum of positive squares in 2 ways, for example, as 8910225 + 14333796 = 2985^2 + 3786^2 .

It is not a de Polignac number, because 23244021 - 2¹³ = 23235829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23243985 and 23244003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23244031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2380 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (2808585).

Almost surely, 2^23244021 is an apocalyptic number.

It is an amenable number.

23244021 is a deficient number, since it is larger than the sum of its proper divisors (10458999).

23244021 is a wasteful number, since it uses less digits than its factorization.

23244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9876 (or 9873 counting only the distinct ones).

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

The square root of 23244021 is about 4821.2053472135. The cubic root of 23244021 is about 285.3889058146.

Adding to 23244021 its reverse (12044232), we get a palindrome (35288253).

It can be divided in two parts, 232 and 44021, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 23244021 in words is "twenty-three million, two hundred forty-four thousand, twenty-one".