3138281694 has 24 divisors (see below), whose sum is σ = 6801383160. Its totient is φ = 1045821168.

The previous prime is 3138281693. The next prime is 3138281789. The reversal of 3138281694 is 4961828313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138281693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55509 + ... + 96735.

It is an arithmetic number, because the mean of its divisors is an integer number (283390965).

Almost surely, 2^3138281694 is an apocalyptic number.

3138281694 is an abundant number, since it is smaller than the sum of its proper divisors (3663101466).

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

3138281694 is a wasteful number, since it uses less digits than its factorization.

3138281694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45464 (or 45461 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 3138281694 is about 56020.3685635859. The cubic root of 3138281694 is about 1464.0771901207.

The spelling of 3138281694 in words is "three billion, one hundred thirty-eight million, two hundred eighty-one thousand, six hundred ninety-four".