5449145280 has 448 divisors, whose sum is σ = 19663257600. Its totient is φ = 1271255040.

The previous prime is 5449145279. The next prime is 5449145293. The reversal of 5449145280 is 825419445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13004911 + ... + 13005329.

It is an arithmetic number, because the mean of its divisors is an integer number (43891200).

Almost surely, 2^5449145280 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 5449145280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9831628800).

5449145280 is an abundant number, since it is smaller than the sum of its proper divisors (14214112320).

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

5449145280 is a wasteful number, since it uses less digits than its factorization.

5449145280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 5449145280 is about 73818.3261798857. The cubic root of 5449145280 is about 1759.7168621665.

The spelling of 5449145280 in words is "five billion, four hundred forty-nine million, one hundred forty-five thousand, two hundred eighty".