4491398 has 8 divisors (see below), whose sum is σ = 6829608. Its totient is φ = 2214864.

The previous prime is 4491359. The next prime is 4491401. The reversal of 4491398 is 8931944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15236 + ... + 15527.

It is an arithmetic number, because the mean of its divisors is an integer number (853701).

Almost surely, 2^4491398 is an apocalyptic number.

4491398 is a deficient number, since it is larger than the sum of its proper divisors (2338210).

4491398 is a wasteful number, since it uses less digits than its factorization.

4491398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30838.

The product of its digits is 31104, while the sum is 38.

The square root of 4491398 is about 2119.2918628636. The cubic root of 4491398 is about 164.9910983872.

The spelling of 4491398 in words is "four million, four hundred ninety-one thousand, three hundred ninety-eight".