22271064 has 16 divisors (see below), whose sum is σ = 55677720. Its totient is φ = 7423680.

The previous prime is 22271027. The next prime is 22271083. The reversal of 22271064 is 46017222.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 927961 = 22271064 / (2 + 2 + 2 + 7 + 1 + 0 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463957 + ... + 464004.

Almost surely, 2^22271064 is an apocalyptic number.

22271064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22271064 is an abundant number, since it is smaller than the sum of its proper divisors (33406656).

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

22271064 is a wasteful number, since it uses less digits than its factorization.

22271064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927970 (or 927966 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 22271064 is about 4719.2228173715. Note that the first 3 decimals coincide. The cubic root of 22271064 is about 281.3500448034.

Adding to 22271064 its reverse (46017222), we get a palindrome (68288286).

The spelling of 22271064 in words is "twenty-two million, two hundred seventy-one thousand, sixty-four".