22318473 has 16 divisors (see below), whose sum is σ = 30627072. Its totient is φ = 14448000.

The previous prime is 22318469. The next prime is 22318477. The reversal of 22318473 is 37481322.

It is an interprime number because it is at equal distance from previous prime (22318469) and next prime (22318477).

It is not a de Polignac number, because 22318473 - 2² = 22318469 is a prime.

It is a super-3 number, since 3×22318473³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Its product of digits (8064) is a multiple of the sum of its prime divisors (896).

It is a self number, because there is not a number n which added to its sum of digits gives 22318473.

It is not an unprimeable number, because it can be changed into a prime (22318477) 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 15 ways as a sum of consecutive naturals, for example, 51568 + ... + 51998.

It is an arithmetic number, because the mean of its divisors is an integer number (1914192).

Almost surely, 2^22318473 is an apocalyptic number.

It is an amenable number.

22318473 is a deficient number, since it is larger than the sum of its proper divisors (8308599).

22318473 is a wasteful number, since it uses less digits than its factorization.

22318473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its digits is 8064, while the sum is 30.

The square root of 22318473 is about 4724.2431139813. The cubic root of 22318473 is about 281.5495423931.

Adding to 22318473 its reverse (37481322), we get a palindrome (59799795).

It can be divided in two parts, 22318 and 473, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 22318473 in words is "twenty-two million, three hundred eighteen thousand, four hundred seventy-three".