2223998 has 16 divisors (see below), whose sum is σ = 3871104. Its totient is φ = 938520.

The previous prime is 2223983. The next prime is 2224009. The reversal of 2223998 is 8993222.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (241944).

2^2223998 is an apocalyptic number.

2223998 is a deficient number, since it is larger than the sum of its proper divisors (1647106).

2223998 is a wasteful number, since it uses less digits than its factorization.

2223998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its digits is 15552, while the sum is 35.

The square root of 2223998 is about 1491.3074800322. The cubic root of 2223998 is about 130.5303384591.

The spelling of 2223998 in words is "two million, two hundred twenty-three thousand, nine hundred ninety-eight".