549398 has 16 divisors (see below), whose sum is σ = 863136. Its totient is φ = 262080.

The previous prime is 549391. The next prime is 549403. The reversal of 549398 is 893945.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549398.

It is not an unprimeable number, because it can be changed into a prime (549391) 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 7 ways as a sum of consecutive naturals, for example, 7490 + ... + 7562.

It is an arithmetic number, because the mean of its divisors is an integer number (53946).

2⁵⁴⁹³⁹⁸ is an apocalyptic number.

549398 is a deficient number, since it is larger than the sum of its proper divisors (313738).

549398 is a wasteful number, since it uses less digits than its factorization.

549398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199.

The product of its digits is 38880, while the sum is 38.

The square root of 549398 is about 741.2138692712. The cubic root of 549398 is about 81.9022233347.

The spelling of 549398 in words is "five hundred forty-nine thousand, three hundred ninety-eight".