22228746 has 16 divisors (see below), whose sum is σ = 46797600. Its totient is φ = 7019568.

The previous prime is 22228709. The next prime is 22228747. The reversal of 22228746 is 64782222.

It is not an unprimeable number, because it can be changed into a prime (22228747) 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, 97381 + ... + 97608.

It is an arithmetic number, because the mean of its divisors is an integer number (2924850).

Almost surely, 2^22228746 is an apocalyptic number.

22228746 is an abundant number, since it is smaller than the sum of its proper divisors (24568854).

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

22228746 is a wasteful number, since it uses less digits than its factorization.

22228746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195013.

The product of its digits is 21504, while the sum is 33.

The square root of 22228746 is about 4714.7371082596. The cubic root of 22228746 is about 281.1717309119.

The spelling of 22228746 in words is "twenty-two million, two hundred twenty-eight thousand, seven hundred forty-six".