2171384 has 16 divisors (see below), whose sum is σ = 4248720. Its totient is φ = 1038400.

The previous prime is 2171383. The next prime is 2171387. The reversal of 2171384 is 4831712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171383) 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, 5717 + ... + 6084.

It is an arithmetic number, because the mean of its divisors is an integer number (265545).

2^2171384 is an apocalyptic number.

It is an amenable number.

2171384 is a deficient number, since it is larger than the sum of its proper divisors (2077336).

2171384 is a wasteful number, since it uses less digits than its factorization.

2171384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830 (or 11826 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 2171384 is about 1473.5616715971. The cubic root of 2171384 is about 129.4927769857.

The spelling of 2171384 in words is "two million, one hundred seventy-one thousand, three hundred eighty-four".