22471172 has 24 divisors (see below), whose sum is σ = 40877760. Its totient is φ = 10795680.

The previous prime is 22471159. The next prime is 22471181. The reversal of 22471172 is 27117422.

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, 35297 + ... + 35927.

It is an arithmetic number, because the mean of its divisors is an integer number (1703240).

Almost surely, 2^22471172 is an apocalyptic number.

It is an amenable number.

22471172 is a deficient number, since it is larger than the sum of its proper divisors (18406588).

22471172 is a wasteful number, since it uses less digits than its factorization.

22471172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 969 counting only the distinct ones).

The product of its digits is 1568, while the sum is 26.

The square root of 22471172 is about 4740.3767782741. The cubic root of 22471172 is about 282.1901874161.

Adding to 22471172 its reverse (27117422), we get a palindrome (49588594).

The spelling of 22471172 in words is "twenty-two million, four hundred seventy-one thousand, one hundred seventy-two".