22254471 has 6 divisors (see below), whose sum is σ = 32145360. Its totient is φ = 14836308.

The previous prime is 22254467. The next prime is 22254473. The reversal of 22254471 is 17445222.

It is not a de Polignac number, because 22254471 - 2² = 22254467 is a prime.

It is a super-3 number, since 3×22254471³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22254473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1236351 + ... + 1236368.

It is an arithmetic number, because the mean of its divisors is an integer number (5357560).

Almost surely, 2^22254471 is an apocalyptic number.

22254471 is a deficient number, since it is larger than the sum of its proper divisors (9890889).

22254471 is a wasteful number, since it uses less digits than its factorization.

22254471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472725 (or 2472722 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 22254471 is about 4717.4644672748. The cubic root of 22254471 is about 281.2801543965.

Adding to 22254471 its reverse (17445222), we get a palindrome (39699693).

Subtracting from 22254471 its reverse (17445222), we obtain a square (4809249 = 2193²).

The spelling of 22254471 in words is "twenty-two million, two hundred fifty-four thousand, four hundred seventy-one".