2198782 has 4 divisors (see below), whose sum is σ = 3298176. Its totient is φ = 1099390.

The previous prime is 2198767. The next prime is 2198783. The reversal of 2198782 is 2878912.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549694 + ... + 549697.

It is an arithmetic number, because the mean of its divisors is an integer number (824544).

2^2198782 is an apocalyptic number.

2198782 is a deficient number, since it is larger than the sum of its proper divisors (1099394).

2198782 is a wasteful number, since it uses less digits than its factorization.

2198782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099393.

The product of its digits is 16128, while the sum is 37.

The square root of 2198782 is about 1482.8290528581. The cubic root of 2198782 is about 130.0351384304.

The spelling of 2198782 in words is "two million, one hundred ninety-eight thousand, seven hundred eighty-two".