22268447 has 4 divisors (see below), whose sum is σ = 22986816. Its totient is φ = 21550080.

The previous prime is 22268443. The next prime is 22268461. The reversal of 22268447 is 74486222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22268447 - 2² = 22268443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22268443) 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, 359138 + ... + 359199.

It is an arithmetic number, because the mean of its divisors is an integer number (5746704).

Almost surely, 2^22268447 is an apocalyptic number.

22268447 is a deficient number, since it is larger than the sum of its proper divisors (718369).

22268447 is an equidigital number, since it uses as much as digits as its factorization.

22268447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718368.

The product of its digits is 43008, while the sum is 35.

The square root of 22268447 is about 4718.9455389949. The cubic root of 22268447 is about 281.3390241968.

The spelling of 22268447 in words is "twenty-two million, two hundred sixty-eight thousand, four hundred forty-seven".