22000738 has 4 divisors (see below), whose sum is σ = 33001110. Its totient is φ = 11000368.

The previous prime is 22000721. The next prime is 22000753. The reversal of 22000738 is 83700022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20638849 + 1361889 = 4543^2 + 1167^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

22000738 is a modest number, since divided by 738 gives 220 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500183 + ... + 5500186.

Almost surely, 2^22000738 is an apocalyptic number.

22000738 is a deficient number, since it is larger than the sum of its proper divisors (11000372).

22000738 is a wasteful number, since it uses less digits than its factorization.

22000738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000371.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 22000738 is about 4690.4944302280. The cubic root of 22000738 is about 280.2070662199.

The spelling of 22000738 in words is "twenty-two million, seven hundred thirty-eight", and thus it is an aban number.