22446427 has 4 divisors (see below), whose sum is σ = 22457520. Its totient is φ = 22435336.

The previous prime is 22446379. The next prime is 22446439. The reversal of 22446427 is 72464422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22446427 - 2⁷ = 22446299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22446497) 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, 1552 + ... + 6877.

It is an arithmetic number, because the mean of its divisors is an integer number (5614380).

Almost surely, 2^22446427 is an apocalyptic number.

22446427 is a deficient number, since it is larger than the sum of its proper divisors (11093).

22446427 is an equidigital number, since it uses as much as digits as its factorization.

22446427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11092.

The product of its digits is 21504, while the sum is 31.

The square root of 22446427 is about 4737.7660347468. The cubic root of 22446427 is about 282.0865678262.

The spelling of 22446427 in words is "twenty-two million, four hundred forty-six thousand, four hundred twenty-seven".