549648 has 60 divisors (see below), whose sum is σ = 1682928. Its totient is φ = 166080.

The previous prime is 549643. The next prime is 549649. The reversal of 549648 is 846945.

549648 is a `hidden beast` number, since 5 + 4 + 9 + 648 = 666.

It is a super-2 number, since 2×549648² = 604225847808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549648.

It is not an unprimeable number, because it can be changed into a prime (549641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1411 + ... + 1757.

2⁵⁴⁹⁶⁴⁸ 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 549648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (841464).

549648 is an abundant number, since it is smaller than the sum of its proper divisors (1133280).

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

549648 is a wasteful number, since it uses less digits than its factorization.

549648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 363 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 549648 is about 741.3824923749. The cubic root of 549648 is about 81.9146444761.

The spelling of 549648 in words is "five hundred forty-nine thousand, six hundred forty-eight".