2890126138 has 16 divisors (see below), whose sum is σ = 4720716000. Its totient is φ = 1321799472.

The previous prime is 2890126133. The next prime is 2890126147. The reversal of 2890126138 is 8316210982.

2890126138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2890126138.

It is not an unprimeable number, because it can be changed into a prime (2890126133) 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, 1310208 + ... + 1312411.

It is an arithmetic number, because the mean of its divisors is an integer number (295044750).

Almost surely, 2^2890126138 is an apocalyptic number.

2890126138 is a deficient number, since it is larger than the sum of its proper divisors (1830589862).

2890126138 is a wasteful number, since it uses less digits than its factorization.

2890126138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622669.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 2890126138 is about 53759.8933964717. The cubic root of 2890126138 is about 1424.4228524375.

The spelling of 2890126138 in words is "two billion, eight hundred ninety million, one hundred twenty-six thousand, one hundred thirty-eight".