22286643 has 8 divisors (see below), whose sum is σ = 31463568. Its totient is φ = 13983744.

The previous prime is 22286603. The next prime is 22286689. The reversal of 22286643 is 34668222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22286643 - 2¹⁰ = 22285619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22286603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218446 + ... + 218547.

It is an arithmetic number, because the mean of its divisors is an integer number (3932946).

Almost surely, 2^22286643 is an apocalyptic number.

22286643 is a deficient number, since it is larger than the sum of its proper divisors (9176925).

22286643 is a wasteful number, since it uses less digits than its factorization.

22286643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437013.

The product of its digits is 27648, while the sum is 33.

The square root of 22286643 is about 4720.8731183966. The cubic root of 22286643 is about 281.4156326100.

The spelling of 22286643 in words is "twenty-two million, two hundred eighty-six thousand, six hundred forty-three".