22208946 has 16 divisors (see below), whose sum is σ = 44464224. Its totient is φ = 7395264.

The previous prime is 22208911. The next prime is 22208947. The reversal of 22208946 is 64980222.

It is not an unprimeable number, because it can be changed into a prime (22208947) 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, 9621 + ... + 11703.

It is an arithmetic number, because the mean of its divisors is an integer number (2779014).

Almost surely, 2^22208946 is an apocalyptic number.

22208946 is an abundant number, since it is smaller than the sum of its proper divisors (22255278).

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

22208946 is a wasteful number, since it uses less digits than its factorization.

22208946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 22208946 is about 4712.6368415145. The cubic root of 22208946 is about 281.0882226164.

The spelling of 22208946 in words is "twenty-two million, two hundred eight thousand, nine hundred forty-six".