23221296 has 120 divisors (see below), whose sum is σ = 77606640. Its totient is φ = 6628608.

The previous prime is 23221291. The next prime is 23221301. The reversal of 23221296 is 69212232.

It is an interprime number because it is at equal distance from previous prime (23221291) and next prime (23221301).

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 not an unprimeable number, because it can be changed into a prime (23221291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20620 + ... + 21716.

It is an arithmetic number, because the mean of its divisors is an integer number (646722).

Almost surely, 2^23221296 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 23221296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38803320).

23221296 is an abundant number, since it is smaller than the sum of its proper divisors (54385344).

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

23221296 is a wasteful number, since it uses less digits than its factorization.

23221296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 1109 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 23221296 is about 4818.8479951125. The cubic root of 23221296 is about 285.2958700244.

It can be divided in two parts, 232 and 21296, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 23221296 in words is "twenty-three million, two hundred twenty-one thousand, two hundred ninety-six".