549388 has 18 divisors (see below), whose sum is σ = 1118796. Its totient is φ = 235368.

The previous prime is 549379. The next prime is 549391. The reversal of 549388 is 883945.

It is a zygodrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206 + ... + 1597.

2⁵⁴⁹³⁸⁸ is an apocalyptic number.

It is an amenable number.

549388 is an abundant number, since it is smaller than the sum of its proper divisors (569408).

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

549388 is a wasteful number, since it uses less digits than its factorization.

549388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821 (or 2812 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 549388 is about 741.2071235491. The cubic root of 549388 is about 81.9017264106.

It can be divided in two parts, 54938 and 8, that added together give a triangular number (54946 = T₃₃₁).

The spelling of 549388 in words is "five hundred forty-nine thousand, three hundred eighty-eight".