549807844 has 12 divisors (see below), whose sum is σ = 962493868. Its totient is φ = 274809600.

The previous prime is 549807809. The next prime is 549807857. The reversal of 549807844 is 448708945.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96628900 + 453178944 = 9830^2 + 21288^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9537 + ... + 34504.

Almost surely, 2^549807844 is an apocalyptic number.

It is an amenable number.

549807844 is a deficient number, since it is larger than the sum of its proper divisors (412686024).

549807844 is a wasteful number, since it uses less digits than its factorization.

549807844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47166 (or 47164 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 549807844 is about 23447.9816615418. The cubic root of 549807844 is about 819.2258428209.

The spelling of 549807844 in words is "five hundred forty-nine million, eight hundred seven thousand, eight hundred forty-four".