22143306 has 8 divisors (see below), whose sum is σ = 44286624. Its totient is φ = 7381100.

The previous prime is 22143301. The next prime is 22143307. The reversal of 22143306 is 60334122.

It is a happy number.

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

22143306 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22143301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845270 + ... + 1845281.

It is an arithmetic number, because the mean of its divisors is an integer number (5535828).

Almost surely, 2^22143306 is an apocalyptic number.

22143306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22143306 is a wasteful number, since it uses less digits than its factorization.

22143306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690556.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 22143306 is about 4705.6674340629. The cubic root of 22143306 is about 280.8110244371.

Adding to 22143306 its reverse (60334122), we get a palindrome (82477428).

The spelling of 22143306 in words is "twenty-two million, one hundred forty-three thousand, three hundred six".