22630445 has 4 divisors (see below), whose sum is σ = 27156540. Its totient is φ = 18104352.

The previous prime is 22630429. The next prime is 22630457. The reversal of 22630445 is 54403622.

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 7365796 + 15264649 = 2714^2 + 3907^2 .

It is a cyclic number.

It is not a de Polignac number, because 22630445 - 2⁴ = 22630429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263040 + ... + 2263049.

It is an arithmetic number, because the mean of its divisors is an integer number (6789135).

Almost surely, 2^22630445 is an apocalyptic number.

It is an amenable number.

22630445 is a deficient number, since it is larger than the sum of its proper divisors (4526095).

22630445 is an equidigital number, since it uses as much as digits as its factorization.

22630445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526094.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 22630445 is about 4757.1467288702. The cubic root of 22630445 is about 282.8553285870.

The spelling of 22630445 in words is "twenty-two million, six hundred thirty thousand, four hundred forty-five".