5439009940 has 96 divisors (see below), whose sum is σ = 14076324864. Its totient is φ = 1719083520.

The previous prime is 5439009853. The next prime is 5439009941. The reversal of 5439009940 is 499009345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5439009941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1856757 + ... + 1859683.

It is an arithmetic number, because the mean of its divisors is an integer number (146628384).

Almost surely, 2^5439009940 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 5439009940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7038162432).

5439009940 is an abundant number, since it is smaller than the sum of its proper divisors (8637314924).

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

5439009940 is a wasteful number, since it uses less digits than its factorization.

5439009940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977 (or 3975 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 5439009940 is about 73749.6436601561. The cubic root of 5439009940 is about 1758.6251681452.

The spelling of 5439009940 in words is "five billion, four hundred thirty-nine million, nine thousand, nine hundred forty".