22360399 has 4 divisors (see below), whose sum is σ = 22380336. Its totient is φ = 22340464.

The previous prime is 22360381. The next prime is 22360441. The reversal of 22360399 is 99306322.

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 22360399 - 2⁵ = 22360367 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 (22360699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8179 + ... + 10564.

It is an arithmetic number, because the mean of its divisors is an integer number (5595084).

Almost surely, 2^22360399 is an apocalyptic number.

22360399 is a deficient number, since it is larger than the sum of its proper divisors (19937).

22360399 is a wasteful number, since it uses less digits than its factorization.

22360399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19936.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 22360399 is about 4728.6783565813. The cubic root of 22360399 is about 281.7257321987.

The spelling of 22360399 in words is "twenty-two million, three hundred sixty thousand, three hundred ninety-nine".