22006730 has 8 divisors (see below), whose sum is σ = 39612132. Its totient is φ = 8802688.

The previous prime is 22006729. The next prime is 22006739. The reversal of 22006730 is 3760022.

It can be written as a sum of positive squares in 2 ways, for example, as 18498601 + 3508129 = 4301^2 + 1873^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22006739) 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, 1100327 + ... + 1100346.

Almost surely, 2^22006730 is an apocalyptic number.

22006730 is a deficient number, since it is larger than the sum of its proper divisors (17605402).

22006730 is a wasteful number, since it uses less digits than its factorization.

22006730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200680.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 22006730 is about 4691.1331253760. The cubic root of 22006730 is about 280.2325024627.

Adding to 22006730 its reverse (3760022), we get a palindrome (25766752).

The spelling of 22006730 in words is "twenty-two million, six thousand, seven hundred thirty".