22368487 has 4 divisors (see below), whose sum is σ = 22414536. Its totient is φ = 22322440.

The previous prime is 22368473. The next prime is 22368503. The reversal of 22368487 is 78486322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22368487 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22368427) 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, 22288 + ... + 23269.

It is an arithmetic number, because the mean of its divisors is an integer number (5603634).

Almost surely, 2^22368487 is an apocalyptic number.

22368487 is a deficient number, since it is larger than the sum of its proper divisors (46049).

22368487 is an equidigital number, since it uses as much as digits as its factorization.

22368487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46048.

The product of its digits is 129024, while the sum is 40.

The square root of 22368487 is about 4729.5334865079. The cubic root of 22368487 is about 281.7596958599.

The spelling of 22368487 in words is "twenty-two million, three hundred sixty-eight thousand, four hundred eighty-seven".