4198491 has 12 divisors (see below), whose sum is σ = 6615960. Its totient is φ = 2544480.

The previous prime is 4198471. The next prime is 4198511. The reversal of 4198491 is 1948914.

It is an interprime number because it is at equal distance from previous prime (4198471) and next prime (4198511).

It is not a de Polignac number, because 4198491 - 2¹⁰ = 4197467 is a prime.

4198491 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4198471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21106 + ... + 21303.

It is an arithmetic number, because the mean of its divisors is an integer number (551330).

Almost surely, 2^4198491 is an apocalyptic number.

4198491 is a deficient number, since it is larger than the sum of its proper divisors (2417469).

4198491 is a wasteful number, since it uses less digits than its factorization.

4198491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42426 (or 42423 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 4198491 is about 2049.0219618150. The cubic root of 4198491 is about 161.3235395591.

The spelling of 4198491 in words is "four million, one hundred ninety-eight thousand, four hundred ninety-one".