2001120 has 96 divisors (see below), whose sum is σ = 6894720. Its totient is φ = 483840.

The previous prime is 2001101. The next prime is 2001127. The reversal of 2001120 is 211002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 2001099 and 2001108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5091 + ... + 5469.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^2001120 is an apocalyptic number.

2001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3447360).

2001120 is an abundant number, since it is smaller than the sum of its proper divisors (4893600).

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

2001120 is a wasteful number, since it uses less digits than its factorization.

2001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 2001120 is about 1414.6094867489. The cubic root of 2001120 is about 126.0156191270.

Adding to 2001120 its reverse (211002), we get a palindrome (2212122).

The spelling of 2001120 in words is "two million, one thousand, one hundred twenty".