22398243 has 16 divisors (see below), whose sum is σ = 34828800. Its totient is φ = 12798408.

The previous prime is 22398239. The next prime is 22398247. The reversal of 22398243 is 34289322.

It is an interprime number because it is at equal distance from previous prime (22398239) and next prime (22398247).

It is not a de Polignac number, because 22398243 - 2² = 22398239 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22398247) 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, 9855 + ... + 11912.

It is an arithmetic number, because the mean of its divisors is an integer number (2176800).

Almost surely, 2^22398243 is an apocalyptic number.

22398243 is a deficient number, since it is larger than the sum of its proper divisors (12430557).

22398243 is an equidigital number, since it uses as much as digits as its factorization.

22398243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21791 (or 21777 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 22398243 is about 4732.6782058365. The cubic root of 22398243 is about 281.8845787900.

The spelling of 22398243 in words is "twenty-two million, three hundred ninety-eight thousand, two hundred forty-three".