23532222 has 64 divisors (see below), whose sum is σ = 58222080. Its totient is φ = 6189696.

The previous prime is 23532221. The next prime is 23532227. The reversal of 23532222 is 22223532.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23532221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29128 + ... + 29924.

It is an arithmetic number, because the mean of its divisors is an integer number (909720).

Almost surely, 2^23532222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23532222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29111040).

23532222 is an abundant number, since it is smaller than the sum of its proper divisors (34689858).

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

23532222 is a wasteful number, since it uses less digits than its factorization.

23532222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 1440, while the sum is 21.

The square root of 23532222 is about 4851.0021645017. The cubic root of 23532222 is about 286.5635699817.

Subtracting from 23532222 its sum of digits (21), we obtain a square (23532201 = 4851²).

Adding to 23532222 its reverse (22223532), we get a palindrome (45755754).

The spelling of 23532222 in words is "twenty-three million, five hundred thirty-two thousand, two hundred twenty-two".