22961306 has 4 divisors (see below), whose sum is σ = 34441962. Its totient is φ = 11480652.

The previous prime is 22961303. The next prime is 22961317. The reversal of 22961306 is 60316922.

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., 16736281 + 6225025 = 4091^2 + 2495^2 .

It is not an unprimeable number, because it can be changed into a prime (22961303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740325 + ... + 5740328.

Almost surely, 2^22961306 is an apocalyptic number.

22961306 is a deficient number, since it is larger than the sum of its proper divisors (11480656).

22961306 is a wasteful number, since it uses less digits than its factorization.

22961306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11480655.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 22961306 is about 4791.7956968135. The cubic root of 22961306 is about 284.2271293540.

The spelling of 22961306 in words is "twenty-two million, nine hundred sixty-one thousand, three hundred six".