22705146 has 24 divisors (see below), whose sum is σ = 49750740. Its totient is φ = 7482816.

The previous prime is 22705141. The next prime is 22705159. The reversal of 22705146 is 64150722.

It can be written as a sum of positive squares in 2 ways, for example, as 22667121 + 38025 = 4761^2 + 195^2 .

It is not an unprimeable number, because it can be changed into a prime (22705141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5485 + ... + 8688.

Almost surely, 2^22705146 is an apocalyptic number.

22705146 is an abundant number, since it is smaller than the sum of its proper divisors (27045594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22705146 is a wasteful number, since it uses less digits than its factorization.

22705146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14270 (or 14267 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22705146 is about 4764.9917103810. The cubic root of 22705146 is about 283.1662131722.

Adding to 22705146 its reverse (64150722), we get a palindrome (86855868).

The spelling of 22705146 in words is "twenty-two million, seven hundred five thousand, one hundred forty-six".