2198988 has 60 divisors (see below), whose sum is σ = 6281352. Its totient is φ = 665280.

The previous prime is 2198981. The next prime is 2199061. The reversal of 2198988 is 8898912.

It is not an unprimeable number, because it can be changed into a prime (2198981) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3256 + ... + 3872.

2^2198988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2198988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3140676).

2198988 is an abundant number, since it is smaller than the sum of its proper divisors (4082364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2198988 is a wasteful number, since it uses less digits than its factorization.

2198988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 633 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 2198988 is about 1482.8985130480. The cubic root of 2198988 is about 130.0391992243.

The spelling of 2198988 in words is "two million, one hundred ninety-eight thousand, nine hundred eighty-eight".