22318475 has 12 divisors (see below), whose sum is σ = 27952080. Its totient is φ = 17676000.

The previous prime is 22318469. The next prime is 22318477. The reversal of 22318475 is 57481322.

It is not a de Polignac number, because 22318475 - 2⁶ = 22318411 is a prime.

It is a super-3 number, since 3×22318475³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (22318477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1895 + ... + 6944.

It is an arithmetic number, because the mean of its divisors is an integer number (2329340).

Almost surely, 2^22318475 is an apocalyptic number.

22318475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22318475 is a deficient number, since it is larger than the sum of its proper divisors (5633605).

22318475 is a wasteful number, since it uses less digits than its factorization.

22318475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950 (or 8945 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 22318475 is about 4724.2433256554. The cubic root of 22318475 is about 281.5495508031.

Adding to 22318475 its reverse (57481322), we get a palindrome (79799797).

The spelling of 22318475 in words is "twenty-two million, three hundred eighteen thousand, four hundred seventy-five".