22228466 has 16 divisors (see below), whose sum is σ = 35985600. Its totient is φ = 10237008.

The previous prime is 22228447. The next prime is 22228477. The reversal of 22228466 is 66482222.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21305 + ... + 22323.

It is an arithmetic number, because the mean of its divisors is an integer number (2249100).

Almost surely, 2^22228466 is an apocalyptic number.

22228466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22228466 is a deficient number, since it is larger than the sum of its proper divisors (13757134).

22228466 is a wasteful number, since it uses less digits than its factorization.

22228466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873.

The product of its digits is 18432, while the sum is 32.

The square root of 22228466 is about 4714.7074140396. The cubic root of 22228466 is about 281.1705503322.

The spelling of 22228466 in words is "twenty-two million, two hundred twenty-eight thousand, four hundred sixty-six".