549429 has 8 divisors (see below), whose sum is σ = 736032. Its totient is φ = 364560.

The previous prime is 549421. The next prime is 549431. The reversal of 549429 is 924945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 549429 - 2³ = 549421 is a prime.

549429 is a lucky number.

It is a plaindrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 549429.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549429.

It is not an unprimeable number, because it can be changed into a prime (549421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874 + ... + 1364.

It is an arithmetic number, because the mean of its divisors is an integer number (92004).

2⁵⁴⁹⁴²⁹ is an apocalyptic number.

It is an amenable number.

549429 is a deficient number, since it is larger than the sum of its proper divisors (186603).

549429 is a wasteful number, since it uses less digits than its factorization.

549429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its digits is 12960, while the sum is 33.

The square root of 549429 is about 741.2347806195. The cubic root of 549429 is about 81.9037637608.

The spelling of 549429 in words is "five hundred forty-nine thousand, four hundred twenty-nine".