3138183820 has 24 divisors (see below), whose sum is σ = 6598189584. Its totient is φ = 1253749056.

The previous prime is 3138183809. The next prime is 3138183821. The reversal of 3138183820 is 283818313.

It is a self number, because there is not a number n which added to its sum of digits gives 3138183820.

It is not an unprimeable number, because it can be changed into a prime (3138183821) 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, 78327 + ... + 111406.

It is an arithmetic number, because the mean of its divisors is an integer number (274924566).

Almost surely, 2^3138183820 is an apocalyptic number.

It is an amenable number.

3138183820 is an abundant number, since it is smaller than the sum of its proper divisors (3460005764).

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

3138183820 is a wasteful number, since it uses less digits than its factorization.

3138183820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190569 (or 190567 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 3138183820 is about 56019.4949995089. The cubic root of 3138183820 is about 1464.0619698404.

The spelling of 3138183820 in words is "three billion, one hundred thirty-eight million, one hundred eighty-three thousand, eight hundred twenty".