22461266 has 4 divisors (see below), whose sum is σ = 33691902. Its totient is φ = 11230632.

The previous prime is 22461259. The next prime is 22461269. The reversal of 22461266 is 66216422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66216422 = 2 ⋅33108211.

It can be written as a sum of positive squares in only one way, i.e., 12355225 + 10106041 = 3515^2 + 3179^2 .

It is not an unprimeable number, because it can be changed into a prime (22461269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615315 + ... + 5615318.

Almost surely, 2^22461266 is an apocalyptic number.

22461266 is a deficient number, since it is larger than the sum of its proper divisors (11230636).

22461266 is a wasteful number, since it uses less digits than its factorization.

22461266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11230635.

The product of its digits is 6912, while the sum is 29.

The square root of 22461266 is about 4739.3318094432. The cubic root of 22461266 is about 282.1487152155.

Adding to 22461266 its reverse (66216422), we get a palindrome (88677688).

The spelling of 22461266 in words is "twenty-two million, four hundred sixty-one thousand, two hundred sixty-six".