22443475 has 12 divisors (see below), whose sum is σ = 27888840. Its totient is φ = 17916800.

The previous prime is 22443431. The next prime is 22443479. The reversal of 22443475 is 57434422.

It is a happy number.

It is not a de Polignac number, because 22443475 - 2²³ = 14054867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22443479) 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, 21516 + ... + 22534.

It is an arithmetic number, because the mean of its divisors is an integer number (2324070).

Almost surely, 2^22443475 is an apocalyptic number.

22443475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22443475 is a deficient number, since it is larger than the sum of its proper divisors (5445365).

22443475 is a wasteful number, since it uses less digits than its factorization.

22443475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910 (or 1905 counting only the distinct ones).

The product of its digits is 26880, while the sum is 31.

The square root of 22443475 is about 4737.4544852695. The cubic root of 22443475 is about 282.0742012544.

Adding to 22443475 its reverse (57434422), we get a palindrome (79877897).

The spelling of 22443475 in words is "twenty-two million, four hundred forty-three thousand, four hundred seventy-five".