3138787760 has 40 divisors (see below), whose sum is σ = 7385621040. Its totient is φ = 1240385792.

The previous prime is 3138787753. The next prime is 3138787763. The reversal of 3138787760 is 677878313.

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

It is a junction number, because it is equal to n+sod(n) for n = 3138787699 and 3138787708.

It is not an unprimeable number, because it can be changed into a prime (3138787763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229715 + ... + 242994.

It is an arithmetic number, because the mean of its divisors is an integer number (184640526).

Almost surely, 2^3138787760 is an apocalyptic number.

It is an amenable number.

3138787760 is an abundant number, since it is smaller than the sum of its proper divisors (4246833280).

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

3138787760 is a wasteful number, since it uses less digits than its factorization.

3138787760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472805 (or 472799 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

The square root of 3138787760 is about 56024.8851850675. The cubic root of 3138787760 is about 1464.1558828510.

The spelling of 3138787760 in words is "three billion, one hundred thirty-eight million, seven hundred eighty-seven thousand, seven hundred sixty".