22354452 has 18 divisors (see below), whose sum is σ = 56507178. Its totient is φ = 7451472.

The previous prime is 22354433. The next prime is 22354477. The reversal of 22354452 is 25445322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20466576 + 1887876 = 4524^2 + 1374^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 310443 + ... + 310514.

Almost surely, 2^22354452 is an apocalyptic number.

It is an amenable number.

22354452 is an abundant number, since it is smaller than the sum of its proper divisors (34152726).

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

22354452 is a wasteful number, since it uses less digits than its factorization.

22354452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620967 (or 620962 counting only the distinct ones).

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

The square root of 22354452 is about 4728.0494921267. The cubic root of 22354452 is about 281.7007539402.

Adding to 22354452 its reverse (25445322), we get a palindrome (47799774).

The spelling of 22354452 in words is "twenty-two million, three hundred fifty-four thousand, four hundred fifty-two".