22471332 has 48 divisors (see below), whose sum is σ = 56777280. Its totient is φ = 6876288.

The previous prime is 22471303. The next prime is 22471333. The reversal of 22471332 is 23317422.

It is not an unprimeable number, because it can be changed into a prime (22471333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43894 + ... + 44402.

It is an arithmetic number, because the mean of its divisors is an integer number (1182860).

Almost surely, 2^22471332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22471332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28388640).

22471332 is an abundant number, since it is smaller than the sum of its proper divisors (34305948).

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

22471332 is a wasteful number, since it uses less digits than its factorization.

22471332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 810 counting only the distinct ones).

The product of its digits is 2016, while the sum is 24.

The square root of 22471332 is about 4740.3936545397. The cubic root of 22471332 is about 282.1908571679.

Adding to 22471332 its reverse (23317422), we get a palindrome (45788754).

The spelling of 22471332 in words is "twenty-two million, four hundred seventy-one thousand, three hundred thirty-two".