22422427 has 4 divisors (see below), whose sum is σ = 22523200. Its totient is φ = 22321656.

The previous prime is 22422409. The next prime is 22422437. The reversal of 22422427 is 72422422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72422422 = 2 ⋅36211211.

It is a cyclic number.

It is not a de Polignac number, because 22422427 - 2¹¹ = 22420379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22422437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50052 + ... + 50497.

It is an arithmetic number, because the mean of its divisors is an integer number (5630800).

Almost surely, 2^22422427 is an apocalyptic number.

22422427 is a deficient number, since it is larger than the sum of its proper divisors (100773).

22422427 is a wasteful number, since it uses less digits than its factorization.

22422427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100772.

The product of its digits is 3584, while the sum is 25.

The square root of 22422427 is about 4735.2325180502. The cubic root of 22422427 is about 281.9859951464.

Adding to 22422427 its reverse (72422422), we get a palindrome (94844849).

The spelling of 22422427 in words is "twenty-two million, four hundred twenty-two thousand, four hundred twenty-seven".