22012832 has 12 divisors (see below), whose sum is σ = 43337826. Its totient is φ = 11006400.

The previous prime is 22012831. The next prime is 22012853. The reversal of 22012832 is 23821022.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 9024016 = 3604^2 + 3004^2 .

It is not an unprimeable number, because it can be changed into a prime (22012831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343919 + ... + 343982.

Almost surely, 2^22012832 is an apocalyptic number.

It is an amenable number.

22012832 is a deficient number, since it is larger than the sum of its proper divisors (21324994).

22012832 is an equidigital number, since it uses as much as digits as its factorization.

22012832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687911 (or 687903 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 22012832 is about 4691.7834562136. The cubic root of 22012832 is about 280.2584009145.

Adding to 22012832 its reverse (23821022), we get a palindrome (45833854).

The spelling of 22012832 in words is "twenty-two million, twelve thousand, eight hundred thirty-two".