2198741 has 4 divisors (see below), whose sum is σ = 2220192. Its totient is φ = 2177292.

The previous prime is 2198723. The next prime is 2198747. The reversal of 2198741 is 1478912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2198741 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2198698 and 2198707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10571 + ... + 10776.

It is an arithmetic number, because the mean of its divisors is an integer number (555048).

2^2198741 is an apocalyptic number.

It is an amenable number.

2198741 is a deficient number, since it is larger than the sum of its proper divisors (21451).

2198741 is a wasteful number, since it uses less digits than its factorization.

2198741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21450.

The product of its digits is 4032, while the sum is 32.

The square root of 2198741 is about 1482.8152278689. The cubic root of 2198741 is about 130.0343301838.

The spelling of 2198741 in words is "two million, one hundred ninety-eight thousand, seven hundred forty-one".