22331532 has 48 divisors (see below), whose sum is σ = 54254592. Its totient is φ = 7141440.

The previous prime is 22331531. The next prime is 22331539. The reversal of 22331532 is 23513322.

It is a junction number, because it is equal to n+sod(n) for n = 22331499 and 22331508.

It is not an unprimeable number, because it can be changed into a prime (22331531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64183 + ... + 64529.

It is an arithmetic number, because the mean of its divisors is an integer number (1130304).

Almost surely, 2^22331532 is an apocalyptic number.

It is an amenable number.

22331532 is an abundant number, since it is smaller than the sum of its proper divisors (31923060).

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

22331532 is a wasteful number, since it uses less digits than its factorization.

22331532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 556 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 22331532 is about 4725.6250380241. The cubic root of 22331532 is about 281.6044451724.

Adding to 22331532 its reverse (23513322), we get a palindrome (45844854).

The spelling of 22331532 in words is "twenty-two million, three hundred thirty-one thousand, five hundred thirty-two".