22280475 has 72 divisors (see below), whose sum is σ = 44663808. Its totient is φ = 9590400.

The previous prime is 22280473. The next prime is 22280477. The reversal of 22280475 is 57408222.

It is an interprime number because it is at equal distance from previous prime (22280473) and next prime (22280477).

It is not a de Polignac number, because 22280475 - 2¹ = 22280473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22280471) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 602157 + ... + 602193.

Almost surely, 2^22280475 is an apocalyptic number.

22280475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22280475 is an abundant number, since it is smaller than the sum of its proper divisors (22383333).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22280475 is a wasteful number, since it uses less digits than its factorization.

22280475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 22280475 is about 4720.2198042040. The cubic root of 22280475 is about 281.3896689005.

Adding to 22280475 its reverse (57408222), we get a palindrome (79688697).

The spelling of 22280475 in words is "twenty-two million, two hundred eighty thousand, four hundred seventy-five".