5239243720 has 16 divisors (see below), whose sum is σ = 11788298460. Its totient is φ = 2095697472.

The previous prime is 5239243717. The next prime is 5239243721. The reversal of 5239243720 is 273429325.

It can be written as a sum of positive squares in 2 ways, for example, as 4372647876 + 866595844 = 66126^2 + 29438^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5239243720.

It is not an unprimeable number, because it can be changed into a prime (5239243721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65490507 + ... + 65490586.

Almost surely, 2^5239243720 is an apocalyptic number.

It is an amenable number.

5239243720 is an abundant number, since it is smaller than the sum of its proper divisors (6549054740).

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

5239243720 is a wasteful number, since it uses less digits than its factorization.

5239243720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130981104 (or 130981100 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 5239243720 is about 72382.6202896800. The cubic root of 5239243720 is about 1736.8255548417.

The spelling of 5239243720 in words is "five billion, two hundred thirty-nine million, two hundred forty-three thousand, seven hundred twenty".