2181848 has 32 divisors (see below), whose sum is σ = 4419360. Its totient is φ = 1006080.

The previous prime is 2181833. The next prime is 2181857. The reversal of 2181848 is 8481812.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8165 + ... + 8427.

It is an arithmetic number, because the mean of its divisors is an integer number (138105).

2^2181848 is an apocalyptic number.

It is an amenable number.

2181848 is an abundant number, since it is smaller than the sum of its proper divisors (2237512).

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

2181848 is a wasteful number, since it uses less digits than its factorization.

2181848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 343 counting only the distinct ones).

The product of its digits is 4096, while the sum is 32.

The square root of 2181848 is about 1477.1079852198. The cubic root of 2181848 is about 129.7004543018.

The spelling of 2181848 in words is "two million, one hundred eighty-one thousand, eight hundred forty-eight".