22228674 has 64 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 6370560.

The previous prime is 22228669. The next prime is 22228691. The reversal of 22228674 is 47682222.

It is a super-2 number, since 2×22228674² = 988227895596552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69964 + ... + 70280.

It is an arithmetic number, because the mean of its divisors is an integer number (801360).

Almost surely, 2^22228674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22228674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25643520).

22228674 is an abundant number, since it is smaller than the sum of its proper divisors (29058366).

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

22228674 is a wasteful number, since it uses less digits than its factorization.

22228674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395.

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

The square root of 22228674 is about 4714.7294726209. The cubic root of 22228674 is about 281.1714273352.

The spelling of 22228674 in words is "twenty-two million, two hundred twenty-eight thousand, six hundred seventy-four".