22245354 has 40 divisors (see below), whose sum is σ = 50115780. Its totient is φ = 7375104.

The previous prime is 22245343. The next prime is 22245359. The reversal of 22245354 is 45354222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21483225 + 762129 = 4635^2 + 873^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22245359) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56992 + ... + 57380.

Almost surely, 2^22245354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22245354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25057890).

22245354 is an abundant number, since it is smaller than the sum of its proper divisors (27870426).

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

22245354 is a wasteful number, since it uses less digits than its factorization.

22245354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 747 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 22245354 is about 4716.4980653023. The cubic root of 22245354 is about 281.2417384240.

Adding to 22245354 its reverse (45354222), we get a palindrome (67599576).

The spelling of 22245354 in words is "twenty-two million, two hundred forty-five thousand, three hundred fifty-four".