22235472 has 240 divisors, whose sum is σ = 79439360. Its totient is φ = 5878656.

The previous prime is 22235471. The next prime is 22235497. The reversal of 22235472 is 27453222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22235471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517083 + ... + 517125.

Almost surely, 2^22235472 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 22235472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39719680).

22235472 is an abundant number, since it is smaller than the sum of its proper divisors (57203888).

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

22235472 is a wasteful number, since it uses less digits than its factorization.

22235472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 74 counting only the distinct ones).

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

The square root of 22235472 is about 4715.4503496485. The cubic root of 22235472 is about 281.2000871426.

Adding to 22235472 its reverse (27453222), we get a palindrome (49688694).

The spelling of 22235472 in words is "twenty-two million, two hundred thirty-five thousand, four hundred seventy-two".