2181008874 has 32 divisors (see below), whose sum is σ = 4765630464. Its totient is φ = 659930480.

The previous prime is 2181008827. The next prime is 2181008903. The reversal of 2181008874 is 4788001812.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20887 + ... + 69269.

It is an arithmetic number, because the mean of its divisors is an integer number (148925952).

Almost surely, 2^2181008874 is an apocalyptic number.

2181008874 is an abundant number, since it is smaller than the sum of its proper divisors (2584621590).

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

2181008874 is a wasteful number, since it uses less digits than its factorization.

2181008874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49082.

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 2181008874 is about 46701.2727235565. The cubic root of 2181008874 is about 1296.8382482402.

The spelling of 2181008874 in words is "two billion, one hundred eighty-one million, eight thousand, eight hundred seventy-four".