22705270 has 16 divisors (see below), whose sum is σ = 46708128. Its totient is φ = 7784640.

The previous prime is 22705261. The next prime is 22705271. The reversal of 22705270 is 7250722.

22705270 = T₁₄₆₀ + T₁₄₆₁ + ... + T₁₄₈₀.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22705271) 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, 162111 + ... + 162250.

It is an arithmetic number, because the mean of its divisors is an integer number (2919258).

Almost surely, 2^22705270 is an apocalyptic number.

22705270 is an abundant number, since it is smaller than the sum of its proper divisors (24002858).

22705270 is a wasteful number, since it uses less digits than its factorization.

22705270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324375.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 22705270 is about 4765.0047219284. The cubic root of 22705270 is about 283.1667286581.

Adding to 22705270 its reverse (7250722), we get a palindrome (29955992).

The spelling of 22705270 in words is "twenty-two million, seven hundred five thousand, two hundred seventy".