22298643 has 12 divisors (see below), whose sum is σ = 32298240. Its totient is φ = 14824656.

The previous prime is 22298603. The next prime is 22298669. The reversal of 22298643 is 34689222.

22298643 is a `hidden beast` number, since 2 + 2 + 2 + 9 + 8 + 643 = 666.

It is not a de Polignac number, because 22298643 - 2⁸ = 22298387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22298598 and 22298607.

It is not an unprimeable number, because it can be changed into a prime (22298603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213 + ... + 6681.

It is an arithmetic number, because the mean of its divisors is an integer number (2691520).

Almost surely, 2^22298643 is an apocalyptic number.

22298643 is a deficient number, since it is larger than the sum of its proper divisors (9999597).

22298643 is a wasteful number, since it uses less digits than its factorization.

22298643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6858 (or 6855 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 22298643 is about 4722.1438986969. The cubic root of 22298643 is about 281.4661319408.

The spelling of 22298643 in words is "twenty-two million, two hundred ninety-eight thousand, six hundred forty-three".