22298881 has 8 divisors (see below), whose sum is σ = 24568128. Its totient is φ = 20070000.

The previous prime is 22298851. The next prime is 22298921. The reversal of 22298881 is 18889222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22298881 is a prime.

It is a super-2 number, since 2×22298881² = 994480187704322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22298851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8925 + ... + 11146.

It is an arithmetic number, because the mean of its divisors is an integer number (3071016).

Almost surely, 2^22298881 is an apocalyptic number.

It is an amenable number.

22298881 is a deficient number, since it is larger than the sum of its proper divisors (2269247).

22298881 is a wasteful number, since it uses less digits than its factorization.

22298881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20183.

The product of its digits is 36864, while the sum is 40.

The square root of 22298881 is about 4722.1690990476. The cubic root of 22298881 is about 281.4671333276.

The spelling of 22298881 in words is "twenty-two million, two hundred ninety-eight thousand, eight hundred eighty-one".