22202643 has 8 divisors (see below), whose sum is σ = 29734848. Its totient is φ = 14736104.

The previous prime is 22202633. The next prime is 22202651. The reversal of 22202643 is 34620222.

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

It is a cyclic number.

It is not a de Polignac number, because 22202643 - 2⁸ = 22202387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22202633) 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 7 ways as a sum of consecutive naturals, for example, 15621 + ... + 16982.

It is an arithmetic number, because the mean of its divisors is an integer number (3716856).

Almost surely, 2^22202643 is an apocalyptic number.

22202643 is a deficient number, since it is larger than the sum of its proper divisors (7532205).

22202643 is a wasteful number, since it uses less digits than its factorization.

22202643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32833.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 22202643 is about 4711.9680601634. The cubic root of 22202643 is about 281.0616287280.

Adding to 22202643 its reverse (34620222), we get a palindrome (56822865).

The spelling of 22202643 in words is "twenty-two million, two hundred two thousand, six hundred forty-three".