22785273 has 16 divisors (see below), whose sum is σ = 38578560. Its totient is φ = 13020048.

The previous prime is 22785263. The next prime is 22785307. The reversal of 22785273 is 37258722.

It is a happy number.

It is not a de Polignac number, because 22785273 - 2⁵ = 22785241 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22785263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60090 + ... + 60467.

It is an arithmetic number, because the mean of its divisors is an integer number (2411160).

Almost surely, 2^22785273 is an apocalyptic number.

It is an amenable number.

22785273 is a deficient number, since it is larger than the sum of its proper divisors (15793287).

22785273 is a wasteful number, since it uses less digits than its factorization.

22785273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120573 (or 120567 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 22785273 is about 4773.3921900468. The cubic root of 22785273 is about 283.4989221985.

The spelling of 22785273 in words is "twenty-two million, seven hundred eighty-five thousand, two hundred seventy-three".