5449042368 has 840 divisors, whose sum is σ = 21778850016. Its totient is φ = 1313832960.

The previous prime is 5449042367. The next prime is 5449042387. The reversal of 5449042368 is 8632409445.

5449042368 is a `hidden beast` number, since 544 + 9 + 0 + 42 + 3 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5449042363) 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 119 ways as a sum of consecutive naturals, for example, 74644380 + ... + 74644452.

Almost surely, 2^5449042368 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 5449042368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10889425008).

5449042368 is an abundant number, since it is smaller than the sum of its proper divisors (16329807648).

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

5449042368 is a wasteful number, since it uses less digits than its factorization.

5449042368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 5449042368 is about 73817.6291139183. The cubic root of 5449042368 is about 1759.7057841526.

The spelling of 5449042368 in words is "five billion, four hundred forty-nine million, forty-two thousand, three hundred sixty-eight".