2146872834 has 24 divisors (see below), whose sum is σ = 4658817072. Its totient is φ = 714507480.

The previous prime is 2146872821. The next prime is 2146872839. The reversal of 2146872834 is 4382786412.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2146872834.

It is not an unprimeable number, because it can be changed into a prime (2146872839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81172 + ... + 104319.

It is an arithmetic number, because the mean of its divisors is an integer number (194117378).

Almost surely, 2^2146872834 is an apocalyptic number.

2146872834 is an abundant number, since it is smaller than the sum of its proper divisors (2511944238).

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

2146872834 is a wasteful number, since it uses less digits than its factorization.

2146872834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186142 (or 186139 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 2146872834 is about 46334.3591085492. The cubic root of 2146872834 is about 1290.0368224571.

The spelling of 2146872834 in words is "two billion, one hundred forty-six million, eight hundred seventy-two thousand, eight hundred thirty-four".