2179087842 has 32 divisors (see below), whose sum is σ = 4490684352. Its totient is φ = 704407104.

The previous prime is 2179087817. The next prime is 2179087877. The reversal of 2179087842 is 2487809712.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2179087791 and 2179087800.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52168 + ... + 84140.

It is an arithmetic number, because the mean of its divisors is an integer number (140333886).

Almost surely, 2^2179087842 is an apocalyptic number.

2179087842 is an abundant number, since it is smaller than the sum of its proper divisors (2311596510).

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

2179087842 is a wasteful number, since it uses less digits than its factorization.

2179087842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32322.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 2179087842 is about 46680.7009587474. The cubic root of 2179087842 is about 1296.4573848093.

The spelling of 2179087842 in words is "two billion, one hundred seventy-nine million, eighty-seven thousand, eight hundred forty-two".