5121324240 has 40 divisors (see below), whose sum is σ = 15876105888. Its totient is φ = 1365686400.

The previous prime is 5121324199. The next prime is 5121324259. The reversal of 5121324240 is 424231215.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 5121324240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10669186 + ... + 10669665.

Almost surely, 2^5121324240 is an apocalyptic number.

It is an amenable number.

5121324240 is an abundant number, since it is smaller than the sum of its proper divisors (10754781648).

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

5121324240 is a wasteful number, since it uses less digits than its factorization.

5121324240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21338867 (or 21338861 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 5121324240 is about 71563.4280900517. The cubic root of 5121324240 is about 1723.6963323725.

Adding to 5121324240 its reverse (424231215), we get a palindrome (5545555455).

The spelling of 5121324240 in words is "five billion, one hundred twenty-one million, three hundred twenty-four thousand, two hundred forty".