22835281 has 4 divisors (see below), whose sum is σ = 26097472. Its totient is φ = 19573092.

The previous prime is 22835269. The next prime is 22835291. The reversal of 22835281 is 18253822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22835281 - 2⁵ = 22835249 is a prime.

It is a super-2 number, since 2×22835281² = 1042900116697922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22835201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631085 + ... + 1631098.

It is an arithmetic number, because the mean of its divisors is an integer number (6524368).

Almost surely, 2^22835281 is an apocalyptic number.

It is an amenable number.

22835281 is a deficient number, since it is larger than the sum of its proper divisors (3262191).

22835281 is an equidigital number, since it uses as much as digits as its factorization.

22835281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262190.

The product of its digits is 7680, while the sum is 31.

The square root of 22835281 is about 4778.6275226261. The cubic root of 22835281 is about 283.7061738286.

The spelling of 22835281 in words is "twenty-two million, eight hundred thirty-five thousand, two hundred eighty-one".