22421452 has 12 divisors (see below), whose sum is σ = 39619216. Its totient is φ = 11101680.

The previous prime is 22421449. The next prime is 22421459. The reversal of 22421452 is 25412422.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22421459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26799 + ... + 27622.

Almost surely, 2^22421452 is an apocalyptic number.

It is an amenable number.

22421452 is a deficient number, since it is larger than the sum of its proper divisors (17197764).

22421452 is a wasteful number, since it uses less digits than its factorization.

22421452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54528 (or 54526 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 22421452 is about 4735.1295652812. The cubic root of 22421452 is about 281.9819078647.

Adding to 22421452 its reverse (25412422), we get a palindrome (47833874).

The spelling of 22421452 in words is "twenty-two million, four hundred twenty-one thousand, four hundred fifty-two".