22325472 has 144 divisors (see below), whose sum is σ = 70171920. Its totient is φ = 6690816.

The previous prime is 22325461. The next prime is 22325491. The reversal of 22325472 is 27452322.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×22325472³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250804 + ... + 250892.

It is an arithmetic number, because the mean of its divisors is an integer number (487305).

Almost surely, 2^22325472 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 22325472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35085960).

22325472 is an abundant number, since it is smaller than the sum of its proper divisors (47846448).

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

22325472 is a wasteful number, since it uses less digits than its factorization.

22325472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 174 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 22325472 is about 4724.9838094961. The cubic root of 22325472 is about 281.5789703218.

Adding to 22325472 its reverse (27452322), we get a palindrome (49777794).

The spelling of 22325472 in words is "twenty-two million, three hundred twenty-five thousand, four hundred seventy-two".