22985775 has 30 divisors (see below), whose sum is σ = 42581352. Its totient is φ = 12258000.

The previous prime is 22985749. The next prime is 22985813. The reversal of 22985775 is 57758922.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-22985775 is a prime.

It is a super-3 number, since 3×22985775³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 22985775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3651 + ... + 7700.

Almost surely, 2^22985775 is an apocalyptic number.

22985775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22985775 is a deficient number, since it is larger than the sum of its proper divisors (19595577).

22985775 is a wasteful number, since it uses less digits than its factorization.

22985775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11373 (or 11359 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 22985775 is about 4794.3482351619. The cubic root of 22985775 is about 284.3280568973.

The spelling of 22985775 in words is "twenty-two million, nine hundred eighty-five thousand, seven hundred seventy-five".