22000730 has 16 divisors (see below), whose sum is σ = 39700584. Its totient is φ = 8778240.

The previous prime is 22000721. The next prime is 22000753. The reversal of 22000730 is 3700022.

It can be written as a sum of positive squares in 4 ways, for example, as 8743849 + 13256881 = 2957^2 + 3641^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1790 + ... + 6870.

Almost surely, 2^22000730 is an apocalyptic number.

22000730 is a deficient number, since it is larger than the sum of its proper divisors (17699854).

22000730 is a wasteful number, since it uses less digits than its factorization.

22000730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5521.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 22000730 is about 4690.4935774394. The cubic root of 22000730 is about 280.2070322566.

Adding to 22000730 its reverse (3700022), we get a palindrome (25700752).

The spelling of 22000730 in words is "twenty-two million, seven hundred thirty", and thus it is an aban number.