22000032 has 48 divisors (see below), whose sum is σ = 64169280. Its totient is φ = 7333056.

The previous prime is 22000031. The next prime is 22000037. The reversal of 22000032 is 23000022.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 21999978 and 22000023.

It is not an unprimeable number, because it can be changed into a prime (22000031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11868 + ... + 13595.

It is an arithmetic number, because the mean of its divisors is an integer number (1336860).

Almost surely, 2^22000032 is an apocalyptic number.

It is an amenable number.

22000032 is an abundant number, since it is smaller than the sum of its proper divisors (42169248).

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

22000032 is a wasteful number, since it uses less digits than its factorization.

22000032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25482 (or 25468 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 22000032 is about 4690.4191710337. The cubic root of 22000032 is about 280.2040689219.

Adding to 22000032 its reverse (23000022), we get a palindrome (45000054).

The spelling of 22000032 in words is "twenty-two million, thirty-two", and thus it is an aban number and an uban number.