2002140 has 108 divisors (see below), whose sum is σ = 7095816. Its totient is φ = 455616.

The previous prime is 2002093. The next prime is 2002151. The reversal of 2002140 is 412002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8707 + ... + 8933.

It is an arithmetic number, because the mean of its divisors is an integer number (65702).

2^2002140 is an apocalyptic number.

2002140 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 2002140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3547908).

2002140 is an abundant number, since it is smaller than the sum of its proper divisors (5093676).

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

2002140 is a wasteful number, since it uses less digits than its factorization.

2002140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2002140 is about 1414.9699643455. The cubic root of 2002140 is about 126.0370261555.

Adding to 2002140 its reverse (412002), we get a palindrome (2414142).

The spelling of 2002140 in words is "two million, two thousand, one hundred forty".