22313472 has 80 divisors (see below), whose sum is σ = 60561600. Its totient is φ = 7299072.

The previous prime is 22313453. The next prime is 22313491. The reversal of 22313472 is 27431322.

It is an interprime number because it is at equal distance from previous prime (22313453) and next prime (22313491).

It is a super-3 number, since 3×22313472³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 112029 + ... + 112227.

It is an arithmetic number, because the mean of its divisors is an integer number (757020).

Almost surely, 2^22313472 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 22313472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30280800).

22313472 is an abundant number, since it is smaller than the sum of its proper divisors (38248128).

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

22313472 is an equidigital number, since it uses as much as digits as its factorization.

22313472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 277 counting only the distinct ones).

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

The square root of 22313472 is about 4723.7137931928. The cubic root of 22313472 is about 281.5285114674.

Adding to 22313472 its reverse (27431322), we get a palindrome (49744794).

It can be divided in two parts, 223 and 13472, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 22313472 in words is "twenty-two million, three hundred thirteen thousand, four hundred seventy-two".