22331332 has 6 divisors (see below), whose sum is σ = 39079838. Its totient is φ = 11165664.

The previous prime is 22331303. The next prime is 22331333. The reversal of 22331332 is 23313322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18267076 + 4064256 = 4274^2 + 2016^2 .

It is not an unprimeable number, because it can be changed into a prime (22331333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2791413 + ... + 2791420.

Almost surely, 2^22331332 is an apocalyptic number.

It is an amenable number.

22331332 is a deficient number, since it is larger than the sum of its proper divisors (16748506).

22331332 is a wasteful number, since it uses less digits than its factorization.

22331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582837 (or 5582835 counting only the distinct ones).

The product of its digits is 648, while the sum is 19.

The square root of 22331332 is about 4725.6038767548. The cubic root of 22331332 is about 281.6036044918.

Adding to 22331332 its reverse (23313322), we get a palindrome (45644654).

It can be divided in two parts, 2 and 2331332, that multiplied together give a palindrome (4662664).

The spelling of 22331332 in words is "twenty-two million, three hundred thirty-one thousand, three hundred thirty-two".