22320032 has 24 divisors (see below), whose sum is σ = 50220576. Its totient is φ = 9565632.

The previous prime is 22320019. The next prime is 22320059. The reversal of 22320032 is 23002322.

It is a super-3 number, since 3×22320032³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 22319989 and 22320016.

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, 49598 + ... + 50045.

It is an arithmetic number, because the mean of its divisors is an integer number (2092524).

Almost surely, 2^22320032 is an apocalyptic number.

It is an amenable number.

22320032 is an abundant number, since it is smaller than the sum of its proper divisors (27900544).

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

22320032 is an equidigital number, since it uses as much as digits as its factorization.

22320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99660 (or 99652 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 22320032 is about 4724.4081110759. The cubic root of 22320032 is about 281.5560978821.

Adding to 22320032 its reverse (23002322), we get a palindrome (45322354).

The spelling of 22320032 in words is "twenty-two million, three hundred twenty thousand, thirty-two".