23221232 has 20 divisors (see below), whose sum is σ = 46443456. Its totient is φ = 11235840.

The previous prime is 23221223. The next prime is 23221241. The reversal of 23221232 is 23212232.

It is an interprime number because it is at equal distance from previous prime (23221223) and next prime (23221241).

23221232 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 23221232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22913 + ... + 23904.

Almost surely, 2^23221232 is an apocalyptic number.

It is an amenable number.

23221232 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23221232 is a wasteful number, since it uses less digits than its factorization.

23221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46856 (or 46850 counting only the distinct ones).

The product of its digits is 288, while the sum is 17.

The square root of 23221232 is about 4818.8413545167. The cubic root of 23221232 is about 285.2956079237.

Adding to 23221232 its reverse (23212232), we get a palindrome (46433464).

The spelling of 23221232 in words is "twenty-three million, two hundred twenty-one thousand, two hundred thirty-two".