22000472 has 16 divisors (see below), whose sum is σ = 44424240. Its totient is φ = 10154016.

The previous prime is 22000463. The next prime is 22000487. The reversal of 22000472 is 27400022.

It is a self number, because there is not a number n which added to its sum of digits gives 22000472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105668 + ... + 105875.

It is an arithmetic number, because the mean of its divisors is an integer number (2776515).

Almost surely, 2^22000472 is an apocalyptic number.

It is an amenable number.

22000472 is an abundant number, since it is smaller than the sum of its proper divisors (22423768).

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

22000472 is a wasteful number, since it uses less digits than its factorization.

22000472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211562 (or 211558 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 22000472 is about 4690.4660749226. The cubic root of 22000472 is about 280.2059369339.

Adding to 22000472 its reverse (27400022), we get a palindrome (49400494).

The spelling of 22000472 in words is "twenty-two million, four hundred seventy-two", and thus it is an aban number.