549836 has 24 divisors (see below), whose sum is σ = 1118880. Its totient is φ = 231552.

The previous prime is 549833. The next prime is 549839. The reversal of 549836 is 638945.

549836 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (549833) and next prime (549839).

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 549796 and 549805.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549836.

It is not an unprimeable number, because it can be changed into a prime (549833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910 + ... + 2178.

It is an arithmetic number, because the mean of its divisors is an integer number (46620).

2⁵⁴⁹⁸³⁶ is an apocalyptic number.

It is an amenable number.

549836 is an abundant number, since it is smaller than the sum of its proper divisors (569044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549836 is a wasteful number, since it uses less digits than its factorization.

549836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 351 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 549836 is about 741.5092716885. The cubic root of 549836 is about 81.9239826936.

The spelling of 549836 in words is "five hundred forty-nine thousand, eight hundred thirty-six".