549939456 has 180 divisors, whose sum is σ = 1789636464. Its totient is φ = 166579200.

The previous prime is 549939451. The next prime is 549939469. The reversal of 549939456 is 654939945.

549939456 is a `hidden beast` number, since 549 + 9 + 3 + 94 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (549939451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 226891 + ... + 229301.

Almost surely, 2^549939456 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 549939456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (894818232).

549939456 is an abundant number, since it is smaller than the sum of its proper divisors (1239697008).

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

549939456 is a wasteful number, since it uses less digits than its factorization.

549939456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450 (or 2427 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The square root of 549939456 is about 23450.7879611752. The cubic root of 549939456 is about 819.2912058690.

The spelling of 549939456 in words is "five hundred forty-nine million, nine hundred thirty-nine thousand, four hundred fifty-six".