22280849 has 4 divisors (see below), whose sum is σ = 22326000. Its totient is φ = 22235700.

The previous prime is 22280833. The next prime is 22280851. The reversal of 22280849 is 94808222.

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 a cyclic number.

It is not a de Polignac number, because 22280849 - 2⁴ = 22280833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22280879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21827 + ... + 22824.

It is an arithmetic number, because the mean of its divisors is an integer number (5581500).

Almost surely, 2^22280849 is an apocalyptic number.

It is an amenable number.

22280849 is a deficient number, since it is larger than the sum of its proper divisors (45151).

22280849 is an equidigital number, since it uses as much as digits as its factorization.

22280849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45150.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 22280849 is about 4720.2594208370. The cubic root of 22280849 is about 281.3912433604.

The spelling of 22280849 in words is "twenty-two million, two hundred eighty thousand, eight hundred forty-nine".