549438799 has 16 divisors (see below), whose sum is σ = 676867072. Its totient is φ = 434312928.

The previous prime is 549438787. The next prime is 549438809. The reversal of 549438799 is 997834945.

It is not a de Polignac number, because 549438799 - 2⁷ = 549438671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549438719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127372 + ... + 131614.

It is an arithmetic number, because the mean of its divisors is an integer number (42304192).

Almost surely, 2^549438799 is an apocalyptic number.

549438799 is a deficient number, since it is larger than the sum of its proper divisors (127428273).

549438799 is a wasteful number, since it uses less digits than its factorization.

549438799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686.

The product of its digits is 9797760, while the sum is 58.

The square root of 549438799 is about 23440.1108999083. The cubic root of 549438799 is about 819.0425067252.

The spelling of 549438799 in words is "five hundred forty-nine million, four hundred thirty-eight thousand, seven hundred ninety-nine".