22333272 has 64 divisors (see below), whose sum is σ = 61447680. Its totient is φ = 6721152.

The previous prime is 22333261. The next prime is 22333279. The reversal of 22333272 is 27233322.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22333279) 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, 13903 + ... + 15425.

It is an arithmetic number, because the mean of its divisors is an integer number (960120).

Almost surely, 2^22333272 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 22333272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30723840).

22333272 is an abundant number, since it is smaller than the sum of its proper divisors (39114408).

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

22333272 is a wasteful number, since it uses less digits than its factorization.

22333272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1588 counting only the distinct ones).

The product of its digits is 3024, while the sum is 24.

The square root of 22333272 is about 4725.8091370685. The cubic root of 22333272 is about 281.6117588818.

Adding to 22333272 its reverse (27233322), we get a palindrome (49566594).

The spelling of 22333272 in words is "twenty-two million, three hundred thirty-three thousand, two hundred seventy-two".