2665198 has 12 divisors (see below), whose sum is σ = 4083912. Its totient is φ = 1304240.

The previous prime is 2665189. The next prime is 2665199. The reversal of 2665198 is 8915662.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665199) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19386 + ... + 19522.

It is an arithmetic number, because the mean of its divisors is an integer number (340326).

2^2665198 is an apocalyptic number.

2665198 is a deficient number, since it is larger than the sum of its proper divisors (1418714).

2665198 is an equidigital number, since it uses as much as digits as its factorization.

2665198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 210 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 2665198 is about 1632.5434144304. The cubic root of 2665198 is about 138.6467922803.

The spelling of 2665198 in words is "two million, six hundred sixty-five thousand, one hundred ninety-eight".