22290032 has 20 divisors (see below), whose sum is σ = 44107296. Its totient is φ = 10907520.

The previous prime is 22290031. The next prime is 22290053. The reversal of 22290032 is 23009222.

It is a super-2 number, since 2×22290032² = 993691053122048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22289986 and 22290013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22290031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14069 + ... + 15572.

Almost surely, 2^22290032 is an apocalyptic number.

It is an amenable number.

22290032 is a deficient number, since it is larger than the sum of its proper divisors (21817264).

22290032 is a wasteful number, since it uses less digits than its factorization.

22290032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29696 (or 29690 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 22290032 is about 4721.2320425923. The cubic root of 22290032 is about 281.4298962991.

Adding to 22290032 its reverse (23009222), we get a palindrome (45299254).

The spelling of 22290032 in words is "twenty-two million, two hundred ninety thousand, thirty-two".