2173901880 has 64 divisors (see below), whose sum is σ = 6582695040. Its totient is φ = 574285952.

The previous prime is 2173901869. The next prime is 2173901941. The reversal of 2173901880 is 881093712.

It is a congruent number.

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, 71814 + ... + 97493.

It is an arithmetic number, because the mean of its divisors is an integer number (102854610).

Almost surely, 2^2173901880 is an apocalyptic number.

2173901880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2173901880 is an abundant number, since it is smaller than the sum of its proper divisors (4408793160).

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

2173901880 is a wasteful number, since it uses less digits than its factorization.

2173901880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169428 (or 169424 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 2173901880 is about 46625.1206968947. The cubic root of 2173901880 is about 1295.4280979564.

The spelling of 2173901880 in words is "two billion, one hundred seventy-three million, nine hundred one thousand, eight hundred eighty".