22323532 has 48 divisors (see below), whose sum is σ = 49190400. Its totient is φ = 8682960.

The previous prime is 22323523. The next prime is 22323541. The reversal of 22323532 is 23532322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22323523) and next prime (22323541).

It is a super-3 number, since 3×22323532³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36969 + ... + 37567.

It is an arithmetic number, because the mean of its divisors is an integer number (1024800).

Almost surely, 2^22323532 is an apocalyptic number.

22323532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22323532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24595200).

22323532 is an abundant number, since it is smaller than the sum of its proper divisors (26866868).

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

22323532 is a wasteful number, since it uses less digits than its factorization.

22323532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 619 counting only the distinct ones).

The product of its digits is 2160, while the sum is 22.

The square root of 22323532 is about 4724.7785133274. The cubic root of 22323532 is about 281.5708140325.

Adding to 22323532 its reverse (23532322), we get a palindrome (45855854).

The spelling of 22323532 in words is "twenty-two million, three hundred twenty-three thousand, five hundred thirty-two".