549374409 has 12 divisors (see below), whose sum is σ = 814988356. Its totient is φ = 356350752.

The previous prime is 549374393. The next prime is 549374443. The reversal of 549374409 is 904473945.

It is a happy number.

549374409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 509495184 + 39879225 = 22572^2 + 6315^2 .

It is not a de Polignac number, because 549374409 - 2⁴ = 549374393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549374209) 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, 824554 + ... + 825219.

Almost surely, 2^549374409 is an apocalyptic number.

It is an amenable number.

549374409 is a deficient number, since it is larger than the sum of its proper divisors (265613947).

549374409 is a wasteful number, since it uses less digits than its factorization.

549374409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649816 (or 1649813 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 549374409 is about 23438.7373593374. The cubic root of 549374409 is about 819.0105103152.

The spelling of 549374409 in words is "five hundred forty-nine million, three hundred seventy-four thousand, four hundred nine".