549469 has 6 divisors (see below), whose sum is σ = 562430. Its totient is φ = 536760.

The previous prime is 549449. The next prime is 549481. The reversal of 549469 is 964945.

It can be written as a sum of positive squares in only one way, i.e., 504100 + 45369 = 710^2 + 213^2 .

It is not a de Polignac number, because 549469 - 2⁹ = 548957 is a prime.

It is a super-2 number, since 2×549469² = 603832363922, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (38880) is a multiple of the sum of its prime divisors (180).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4987 + ... + 5095.

2⁵⁴⁹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

549469 is a deficient number, since it is larger than the sum of its proper divisors (12961).

549469 is an equidigital number, since it uses as much as digits as its factorization.

549469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 180 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 549469 is about 741.2617621326. The cubic root of 549469 is about 81.9057513219.

The spelling of 549469 in words is "five hundred forty-nine thousand, four hundred sixty-nine".