2198043 has 8 divisors (see below), whose sum is σ = 3256400. Its totient is φ = 1465344.

The previous prime is 2198039. The next prime is 2198057. The reversal of 2198043 is 3408912.

It is not a de Polignac number, because 2198043 - 2² = 2198039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 81409 = 2198043 / (2 + 1 + 9 + 8 + 0 + 4 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2197998 and 2198016.

It is not an unprimeable number, because it can be changed into a prime (2198003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40678 + ... + 40731.

It is an arithmetic number, because the mean of its divisors is an integer number (407050).

2^2198043 is an apocalyptic number.

2198043 is a deficient number, since it is larger than the sum of its proper divisors (1058357).

2198043 is an equidigital number, since it uses as much as digits as its factorization.

2198043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81418 (or 81412 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2198043 is about 1482.5798460791. The cubic root of 2198043 is about 130.0205687375.

The spelling of 2198043 in words is "two million, one hundred ninety-eight thousand, forty-three".