2890138394 has 32 divisors (see below), whose sum is σ = 5097738240. Its totient is φ = 1211544000.

The previous prime is 2890138367. The next prime is 2890138409. The reversal of 2890138394 is 4938310982.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361844 + ... + 369744.

It is an arithmetic number, because the mean of its divisors is an integer number (159304320).

Almost surely, 2^2890138394 is an apocalyptic number.

2890138394 is a deficient number, since it is larger than the sum of its proper divisors (2207599846).

2890138394 is a wasteful number, since it uses less digits than its factorization.

2890138394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9206.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 2890138394 is about 53760.0073846721. The cubic root of 2890138394 is about 1424.4248659254.

The spelling of 2890138394 in words is "two billion, eight hundred ninety million, one hundred thirty-eight thousand, three hundred ninety-four".