549072 has 80 divisors (see below), whose sum is σ = 1666560. Its totient is φ = 172800.

The previous prime is 549071. The next prime is 549089. The reversal of 549072 is 270945.

549072 = 3³ + 4³ + ... + 38³.

It is a super-2 number, since 2×549072² = 602960122368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13372 + ... + 13412.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2⁵⁴⁹⁰⁷² 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 549072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (833280).

549072 is an abundant number, since it is smaller than the sum of its proper divisors (1117488).

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

549072 is a wasteful number, since it uses less digits than its factorization.

549072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 549072 is about 740.9939271006. The cubic root of 549072 is about 81.8860205044.

The spelling of 549072 in words is "five hundred forty-nine thousand, seventy-two".