5438741840 has 80 divisors (see below), whose sum is σ = 14804052480. Its totient is φ = 1819223040.

The previous prime is 5438741831. The next prime is 5438741843. The reversal of 5438741840 is 481478345.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 5438741791 and 5438741800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5438741843) 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 15 ways as a sum of consecutive naturals, for example, 95480 + ... + 141399.

It is an arithmetic number, because the mean of its divisors is an integer number (185050656).

Almost surely, 2^5438741840 is an apocalyptic number.

It is an amenable number.

5438741840 is an abundant number, since it is smaller than the sum of its proper divisors (9365310640).

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

5438741840 is a wasteful number, since it uses less digits than its factorization.

5438741840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236940 (or 236934 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 5438741840 is about 73747.8260018558. The cubic root of 5438741840 is about 1758.5962722518.

The spelling of 5438741840 in words is "five billion, four hundred thirty-eight million, seven hundred forty-one thousand, eight hundred forty".