1799806872 has 16 divisors (see below), whose sum is σ = 4499517240. Its totient is φ = 599935616.

The previous prime is 1799806843. The next prime is 1799806907. The reversal of 1799806872 is 2786089971.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37495953 + ... + 37496000.

Almost surely, 2^1799806872 is an apocalyptic number.

1799806872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1799806872 is an abundant number, since it is smaller than the sum of its proper divisors (2699710368).

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

1799806872 is a wasteful number, since it uses less digits than its factorization.

1799806872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74991962 (or 74991958 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 57.

The square root of 1799806872 is about 42424.1307748314. The cubic root of 1799806872 is about 1216.3968922436.

The spelling of 1799806872 in words is "one billion, seven hundred ninety-nine million, eight hundred six thousand, eight hundred seventy-two".