2171120 has 40 divisors (see below), whose sum is σ = 5770464. Its totient is φ = 744192.

The previous prime is 2171119. The next prime is 2171159. The reversal of 2171120 is 211712.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2171095 and 2171104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1379 + ... + 2498.

2^2171120 is an apocalyptic number.

2171120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2171120 is an abundant number, since it is smaller than the sum of its proper divisors (3599344).

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

2171120 is a wasteful number, since it uses less digits than its factorization.

2171120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3891 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 2171120 is about 1473.4720899970. The cubic root of 2171120 is about 129.4875288001.

Adding to 2171120 its reverse (211712), we get a palindrome (2382832).

The spelling of 2171120 in words is "two million, one hundred seventy-one thousand, one hundred twenty".