22705306 has 16 divisors (see below), whose sum is σ = 37372104. Its totient is φ = 10281024.

The previous prime is 22705297. The next prime is 22705307. The reversal of 22705306 is 60350722.

It can be written as a sum of positive squares in 4 ways, for example, as 16329681 + 6375625 = 4041^2 + 2525^2 .

It is not an unprimeable number, because it can be changed into a prime (22705307) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6861 + ... + 9616.

Almost surely, 2^22705306 is an apocalyptic number.

22705306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22705306 is a deficient number, since it is larger than the sum of its proper divisors (14666798).

22705306 is a wasteful number, since it uses less digits than its factorization.

22705306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16545.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 22705306 is about 4765.0084994678. The cubic root of 22705306 is about 283.1668783149.

The spelling of 22705306 in words is "twenty-two million, seven hundred five thousand, three hundred six".