3138204740 has 48 divisors (see below), whose sum is σ = 7205103360. Its totient is φ = 1138663680.

The previous prime is 3138204737. The next prime is 3138204761. The reversal of 3138204740 is 474028313.

It is a junction number, because it is equal to n+sod(n) for n = 3138204697 and 3138204706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86456 + ... + 117264.

It is an arithmetic number, because the mean of its divisors is an integer number (150106320).

Almost surely, 2^3138204740 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 3138204740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3602551680).

3138204740 is an abundant number, since it is smaller than the sum of its proper divisors (4066898620).

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

3138204740 is a wasteful number, since it uses less digits than its factorization.

3138204740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31292 (or 31290 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3138204740 is about 56019.6817199098. The cubic root of 3138204740 is about 1464.0652231137.

The spelling of 3138204740 in words is "three billion, one hundred thirty-eight million, two hundred four thousand, seven hundred forty".