22223428 has 12 divisors (see below), whose sum is σ = 40582080. Its totient is φ = 10628552.

The previous prime is 22223419. The next prime is 22223429. The reversal of 22223428 is 82432222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22223429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120688 + ... + 120871.

It is an arithmetic number, because the mean of its divisors is an integer number (3381840).

Almost surely, 2^22223428 is an apocalyptic number.

It is an amenable number.

22223428 is a deficient number, since it is larger than the sum of its proper divisors (18358652).

22223428 is a wasteful number, since it uses less digits than its factorization.

22223428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241586 (or 241584 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 22223428 is about 4714.1730982220. The cubic root of 22223428 is about 281.1493066371.

The spelling of 22223428 in words is "twenty-two million, two hundred twenty-three thousand, four hundred twenty-eight".