4091198 has 4 divisors (see below), whose sum is σ = 6136800. Its totient is φ = 2045598.

The previous prime is 4091177. The next prime is 4091239. The reversal of 4091198 is 8911904.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022798 + ... + 1022801.

It is an arithmetic number, because the mean of its divisors is an integer number (1534200).

Almost surely, 2^4091198 is an apocalyptic number.

4091198 is a deficient number, since it is larger than the sum of its proper divisors (2045602).

4091198 is a wasteful number, since it uses less digits than its factorization.

4091198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045601.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 4091198 is about 2022.6710063676. The cubic root of 4091198 is about 159.9374495080.

Adding to 4091198 its sum of digits (32), we get a triangular number (4091230 = T₂₈₆₀).

It can be divided in two parts, 4091 and 198, that multiplied together give a palindrome (810018).

The spelling of 4091198 in words is "four million, ninety-one thousand, one hundred ninety-eight".