2201998 has 8 divisors (see below), whose sum is σ = 3359160. Its totient is φ = 1082280.

The previous prime is 2201989. The next prime is 2202007. The reversal of 2201998 is 8991022.

It is an interprime number because it is at equal distance from previous prime (2201989) and next prime (2202007).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9213 + ... + 9448.

It is an arithmetic number, because the mean of its divisors is an integer number (419895).

2^2201998 is an apocalyptic number.

2201998 is a deficient number, since it is larger than the sum of its proper divisors (1157162).

2201998 is a wasteful number, since it uses less digits than its factorization.

2201998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18722.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2201998 is about 1483.9130702302. The cubic root of 2201998 is about 130.0985052222.

The spelling of 2201998 in words is "two million, two hundred one thousand, nine hundred ninety-eight".