22320395 has 4 divisors (see below), whose sum is σ = 26784480. Its totient is φ = 17856312.

The previous prime is 22320391. The next prime is 22320433. The reversal of 22320395 is 59302322.

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

It is a cyclic number.

It is not a de Polignac number, because 22320395 - 2² = 22320391 is a prime.

It is a super-3 number, since 3×22320395³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22320391) by changing a digit.

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, 2232035 + ... + 2232044.

It is an arithmetic number, because the mean of its divisors is an integer number (6696120).

Almost surely, 2^22320395 is an apocalyptic number.

22320395 is a deficient number, since it is larger than the sum of its proper divisors (4464085).

22320395 is an equidigital number, since it uses as much as digits as its factorization.

22320395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4464084.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 22320395 is about 4724.4465284306. The cubic root of 22320395 is about 281.5576242287.

The spelling of 22320395 in words is "twenty-two million, three hundred twenty thousand, three hundred ninety-five".