1799881212 has 12 divisors (see below), whose sum is σ = 4199722856. Its totient is φ = 599960400.

The previous prime is 1799881177. The next prime is 1799881217. The reversal of 1799881212 is 2121889971.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1799881217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74995039 + ... + 74995062.

Almost surely, 2^1799881212 is an apocalyptic number.

1799881212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1799881212 is an abundant number, since it is smaller than the sum of its proper divisors (2399841644).

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

1799881212 is a wasteful number, since it uses less digits than its factorization.

1799881212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149990108 (or 149990106 counting only the distinct ones).

The product of its digits is 145152, while the sum is 48.

The square root of 1799881212 is about 42425.0069180902. The cubic root of 1799881212 is about 1216.4136395404.

The spelling of 1799881212 in words is "one billion, seven hundred ninety-nine million, eight hundred eighty-one thousand, two hundred twelve".