3138461784 has 24 divisors (see below), whose sum is σ = 8500000860. Its totient is φ = 1046153904.

The previous prime is 3138461759. The next prime is 3138461797. The reversal of 3138461784 is 4871648313.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21794802 + ... + 21794945.

Almost surely, 2^3138461784 is an apocalyptic number.

It is an amenable number.

3138461784 is an abundant number, since it is smaller than the sum of its proper divisors (5361539076).

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

3138461784 is a wasteful number, since it uses less digits than its factorization.

3138461784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43589759 (or 43589752 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 3138461784 is about 56021.9759023189. The cubic root of 3138461784 is about 1464.1051948956.

The spelling of 3138461784 in words is "three billion, one hundred thirty-eight million, four hundred sixty-one thousand, seven hundred eighty-four".