549474 has 16 divisors (see below), whose sum is σ = 1163808. Its totient is φ = 172352.

The previous prime is 549449. The next prime is 549481. The reversal of 549474 is 474945.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2592 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (72738).

2⁵⁴⁹⁴⁷⁴ is an apocalyptic number.

549474 is an abundant number, since it is smaller than the sum of its proper divisors (614334).

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

549474 is a wasteful number, since it uses less digits than its factorization.

549474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409.

The product of its digits is 20160, while the sum is 33.

The square root of 549474 is about 741.2651347527. The cubic root of 549474 is about 81.9059997602.

Subtracting from 549474 its reverse (474945), we obtain a square (74529 = 273²).

The spelling of 549474 in words is "five hundred forty-nine thousand, four hundred seventy-four".