22006332 has 36 divisors (see below), whose sum is σ = 58556680. Its totient is φ = 6949152.

The previous prime is 22006321. The next prime is 22006339. The reversal of 22006332 is 23360022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22006339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15403 + ... + 16770.

Almost surely, 2^22006332 is an apocalyptic number.

It is an amenable number.

22006332 is an abundant number, since it is smaller than the sum of its proper divisors (36550348).

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

22006332 is a wasteful number, since it uses less digits than its factorization.

22006332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32202 (or 32197 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 22006332 is about 4691.0907047296. The cubic root of 22006332 is about 280.2308130824.

Adding to 22006332 its reverse (23360022), we get a palindrome (45366354).

The spelling of 22006332 in words is "twenty-two million, six thousand, three hundred thirty-two".