22299605 has 4 divisors (see below), whose sum is σ = 26759532. Its totient is φ = 17839680.

The previous prime is 22299601. The next prime is 22299611. The reversal of 22299605 is 50699222.

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 17322244 + 4977361 = 4162^2 + 2231^2 .

It is not a de Polignac number, because 22299605 - 2² = 22299601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22299601) 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, 2229956 + ... + 2229965.

It is an arithmetic number, because the mean of its divisors is an integer number (6689883).

Almost surely, 2^22299605 is an apocalyptic number.

It is an amenable number.

22299605 is a deficient number, since it is larger than the sum of its proper divisors (4459927).

22299605 is an equidigital number, since it uses as much as digits as its factorization.

22299605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459926.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 22299605 is about 4722.2457581113. The cubic root of 22299605 is about 281.4701795193.

The spelling of 22299605 in words is "twenty-two million, two hundred ninety-nine thousand, six hundred five".