22355345 has 4 divisors (see below), whose sum is σ = 26826420. Its totient is φ = 17884272.

The previous prime is 22355339. The next prime is 22355351. The reversal of 22355345 is 54355322.

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 (22355339) and next prime (22355351).

It can be written as a sum of positive squares in 2 ways, for example, as 7579009 + 14776336 = 2753^2 + 3844^2 .

It is a cyclic number.

It is not a de Polignac number, because 22355345 - 2⁸ = 22355089 is a prime.

It is a super-2 number, since 2×22355345² = 999522900138050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2235530 + ... + 2235539.

It is an arithmetic number, because the mean of its divisors is an integer number (6706605).

Almost surely, 2^22355345 is an apocalyptic number.

It is an amenable number.

22355345 is a deficient number, since it is larger than the sum of its proper divisors (4471075).

22355345 is an equidigital number, since it uses as much as digits as its factorization.

22355345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471074.

The product of its digits is 18000, while the sum is 29.

The square root of 22355345 is about 4728.1439275893. The cubic root of 22355345 is about 281.7045049517.

The spelling of 22355345 in words is "twenty-two million, three hundred fifty-five thousand, three hundred forty-five".