2181104360 has 16 divisors (see below), whose sum is σ = 4907484900. Its totient is φ = 872441728.

The previous prime is 2181104327. The next prime is 2181104459. The reversal of 2181104360 is 634011812.

It can be written as a sum of positive squares in 2 ways, for example, as 2181076804 + 27556 = 46702^2 + 166^2 .

It is a super-2 number, since 2×2181104360² = 9514432458422019200, which contains 22 as substring.

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, 27263765 + ... + 27263844.

Almost surely, 2^2181104360 is an apocalyptic number.

2181104360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2181104360 is an abundant number, since it is smaller than the sum of its proper divisors (2726380540).

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

2181104360 is a wasteful number, since it uses less digits than its factorization.

2181104360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54527620 (or 54527616 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2181104360 is about 46702.2950185534. The cubic root of 2181104360 is about 1296.8571734405.

The spelling of 2181104360 in words is "two billion, one hundred eighty-one million, one hundred four thousand, three hundred sixty".