5381943840 has 576 divisors, whose sum is σ = 22978964736. Its totient is φ = 1116758016.

The previous prime is 5381943839. The next prime is 5381943863. The reversal of 5381943840 is 483491835.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8779374 + ... + 8779986.

It is an arithmetic number, because the mean of its divisors is an integer number (39894036).

Almost surely, 2^5381943840 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 5381943840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11489482368).

5381943840 is an abundant number, since it is smaller than the sum of its proper divisors (17597020896).

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

5381943840 is a wasteful number, since it uses less digits than its factorization.

5381943840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 5381943840 is about 73361.7328039626. The cubic root of 5381943840 is about 1752.4530322787.

The spelling of 5381943840 in words is "five billion, three hundred eighty-one million, nine hundred forty-three thousand, eight hundred forty".