22270643 has 8 divisors (see below), whose sum is σ = 22680000. Its totient is φ = 21864808.

The previous prime is 22270627. The next prime is 22270723. The reversal of 22270643 is 34607222.

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 22270643 - 2⁴ = 22270627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22270343) 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, 14108 + ... + 15606.

It is an arithmetic number, because the mean of its divisors is an integer number (2835000).

Almost surely, 2^22270643 is an apocalyptic number.

22270643 is a deficient number, since it is larger than the sum of its proper divisors (409357).

22270643 is a wasteful number, since it uses less digits than its factorization.

22270643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22270643 is about 4719.1782123586. The cubic root of 22270643 is about 281.3482719632.

Adding to 22270643 its reverse (34607222), we get a palindrome (56877865).

The spelling of 22270643 in words is "twenty-two million, two hundred seventy thousand, six hundred forty-three".