22388245 has 8 divisors (see below), whose sum is σ = 29308320. Its totient is φ = 16282320.

The previous prime is 22388243. The next prime is 22388257. The reversal of 22388245 is 54288322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22388245 - 2¹ = 22388243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22388245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22388243) 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 7 ways as a sum of consecutive naturals, for example, 203475 + ... + 203584.

It is an arithmetic number, because the mean of its divisors is an integer number (3663540).

Almost surely, 2^22388245 is an apocalyptic number.

It is an amenable number.

22388245 is a deficient number, since it is larger than the sum of its proper divisors (6920075).

22388245 is a wasteful number, since it uses less digits than its factorization.

22388245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407075.

The product of its digits is 30720, while the sum is 34.

The square root of 22388245 is about 4731.6218149806. The cubic root of 22388245 is about 281.8426305375.

The spelling of 22388245 in words is "twenty-two million, three hundred eighty-eight thousand, two hundred forty-five".