22207470 has 32 divisors (see below), whose sum is σ = 55019520. Its totient is φ = 5730720.

The previous prime is 22207421. The next prime is 22207481. The reversal of 22207470 is 7470222.

It is a self number, because there is not a number n which added to its sum of digits gives 22207470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11010 + ... + 12869.

It is an arithmetic number, because the mean of its divisors is an integer number (1719360).

Almost surely, 2^22207470 is an apocalyptic number.

22207470 is an abundant number, since it is smaller than the sum of its proper divisors (32812050).

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

22207470 is a wasteful number, since it uses less digits than its factorization.

22207470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23920.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 22207470 is about 4712.4802386854. The cubic root of 22207470 is about 281.0819954650.

Adding to 22207470 its reverse (7470222), we get a palindrome (29677692).

The spelling of 22207470 in words is "twenty-two million, two hundred seven thousand, four hundred seventy".