22486645 has 4 divisors (see below), whose sum is σ = 26983980. Its totient is φ = 17989312.

The previous prime is 22486643. The next prime is 22486649. The reversal of 22486645 is 54668422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8054244 + 14432401 = 2838^2 + 3799^2 .

It is a cyclic number.

It is not a de Polignac number, because 22486645 - 2¹ = 22486643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22486643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248660 + ... + 2248669.

It is an arithmetic number, because the mean of its divisors is an integer number (6745995).

Almost surely, 2^22486645 is an apocalyptic number.

It is an amenable number.

22486645 is a deficient number, since it is larger than the sum of its proper divisors (4497335).

22486645 is an equidigital number, since it uses as much as digits as its factorization.

22486645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497334.

The product of its digits is 92160, while the sum is 37.

The square root of 22486645 is about 4742.0085406924. The cubic root of 22486645 is about 282.2549418932.

The spelling of 22486645 in words is "twenty-two million, four hundred eighty-six thousand, six hundred forty-five".