5000438640 has 40 divisors (see below), whose sum is σ = 15501360528. Its totient is φ = 1333450240.

The previous prime is 5000438627. The next prime is 5000438669. The reversal of 5000438640 is 468340005.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5000438598 and 5000438607.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10417341 + ... + 10417820.

Almost surely, 2^5000438640 is an apocalyptic number.

It is an amenable number.

5000438640 is an abundant number, since it is smaller than the sum of its proper divisors (10500921888).

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

5000438640 is a wasteful number, since it uses less digits than its factorization.

5000438640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20835177 (or 20835171 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 5000438640 is about 70713.7797038173. The cubic root of 5000438640 is about 1710.0259494711.

Adding to 5000438640 its reverse (468340005), we get a palindrome (5468778645).

The spelling of 5000438640 in words is "five billion, four hundred thirty-eight thousand, six hundred forty".