549672 has 32 divisors (see below), whose sum is σ = 1413600. Its totient is φ = 177984.

The previous prime is 549667. The next prime is 549683. The reversal of 549672 is 276945.

549672 = T₈₃ + T₈₄ + ... + T₁₅₆.

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

It is an unprimeable number.

549672 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 579 + ... + 1197.

It is an arithmetic number, because the mean of its divisors is an integer number (44175).

2⁵⁴⁹⁶⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706800).

549672 is an abundant number, since it is smaller than the sum of its proper divisors (863928).

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

549672 is a wasteful number, since it uses less digits than its factorization.

549672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 661 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 549672 is about 741.3986781752. The cubic root of 549672 is about 81.9158367076.

It can be divided in two parts, 549 and 672, that added together give a palindrome (1221).

The spelling of 549672 in words is "five hundred forty-nine thousand, six hundred seventy-two".