22070365 has 4 divisors (see below), whose sum is σ = 26484444. Its totient is φ = 17656288.

The previous prime is 22070359. The next prime is 22070371. The reversal of 22070365 is 56307022.

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

It is an interprime number because it is at equal distance from previous prime (22070359) and next prime (22070371).

It can be written as a sum of positive squares in 2 ways, for example, as 9665881 + 12404484 = 3109^2 + 3522^2 .

It is a cyclic number.

It is not a de Polignac number, because 22070365 - 2¹⁵ = 22037597 is a prime.

It is a super-2 number, since 2×22070365² = 974202022466450, which contains 22 as substring.

It is a Duffinian number.

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, 2207032 + ... + 2207041.

It is an arithmetic number, because the mean of its divisors is an integer number (6621111).

Almost surely, 2^22070365 is an apocalyptic number.

It is an amenable number.

22070365 is a deficient number, since it is larger than the sum of its proper divisors (4414079).

22070365 is an equidigital number, since it uses as much as digits as its factorization.

22070365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414078.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 22070365 is about 4697.9107058351. The cubic root of 22070365 is about 280.5023507396.

Adding to 22070365 its reverse (56307022), we get a palindrome (78377387).

The spelling of 22070365 in words is "twenty-two million, seventy thousand, three hundred sixty-five".