2186481900 has 36 divisors (see below), whose sum is σ = 6326221832. Its totient is φ = 583061760.

The previous prime is 2186481893. The next prime is 2186481917. The reversal of 2186481900 is 91846812.

It is a super-3 number, since 3×2186481900³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3643837 + ... + 3644436.

Almost surely, 2^2186481900 is an apocalyptic number.

2186481900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2186481900 is an abundant number, since it is smaller than the sum of its proper divisors (4139739932).

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

2186481900 is a wasteful number, since it uses less digits than its factorization.

2186481900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7288290 (or 7288283 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 2186481900 is about 46759.8321211700. The cubic root of 2186481900 is about 1297.9221045639.

The spelling of 2186481900 in words is "two billion, one hundred eighty-six million, four hundred eighty-one thousand, nine hundred".