23221944 has 32 divisors (see below), whose sum is σ = 64506000. Its totient is φ = 7740576.

The previous prime is 23221943. The next prime is 23221951. The reversal of 23221944 is 44912232.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53539 + ... + 53970.

Almost surely, 2^23221944 is an apocalyptic number.

23221944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23221944 is an abundant number, since it is smaller than the sum of its proper divisors (41284056).

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

23221944 is a wasteful number, since it uses less digits than its factorization.

23221944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107524 (or 107514 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 23221944 is about 4818.9152306302. The cubic root of 23221944 is about 285.2985237667.

The spelling of 23221944 in words is "twenty-three million, two hundred twenty-one thousand, nine hundred forty-four".