22005372 has 12 divisors (see below), whose sum is σ = 51345896. Its totient is φ = 7335120.

The previous prime is 22005367. The next prime is 22005377. The reversal of 22005372 is 27350022.

It is an interprime number because it is at equal distance from previous prime (22005367) and next prime (22005377).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22005377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916879 + ... + 916902.

Almost surely, 2^22005372 is an apocalyptic number.

It is an amenable number.

22005372 is an abundant number, since it is smaller than the sum of its proper divisors (29340524).

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

22005372 is a wasteful number, since it uses less digits than its factorization.

22005372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833788 (or 1833786 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 22005372 is about 4690.9883819937. The cubic root of 22005372 is about 280.2267381114.

Adding to 22005372 its reverse (27350022), we get a palindrome (49355394).

The spelling of 22005372 in words is "twenty-two million, five thousand, three hundred seventy-two".