549938004 has 192 divisors, whose sum is σ = 1691504640. Its totient is φ = 134830080.

The previous prime is 549937987. The next prime is 549938009. The reversal of 549938004 is 400839945.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549938009) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 2401362 + ... + 2401590.

It is an arithmetic number, because the mean of its divisors is an integer number (8809920).

Almost surely, 2^549938004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549938004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845752320).

549938004 is an abundant number, since it is smaller than the sum of its proper divisors (1141566636).

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

549938004 is a wasteful number, since it uses less digits than its factorization.

549938004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 549938004 is about 23450.7570027068. The cubic root of 549938004 is about 819.2904848127.

The spelling of 549938004 in words is "five hundred forty-nine million, nine hundred thirty-eight thousand, four".