2130240 has 112 divisors (see below), whose sum is σ = 7754112. Its totient is φ = 485376.

The previous prime is 2130239. The next prime is 2130241. The reversal of 2130240 is 420312.

It is an interprime number because it is at equal distance from previous prime (2130239) and next prime (2130241).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130241) 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, 6562 + ... + 6878.

2^2130240 is an apocalyptic number.

2130240 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 2130240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3877056).

2130240 is an abundant number, since it is smaller than the sum of its proper divisors (5623872).

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

2130240 is a wasteful number, since it uses less digits than its factorization.

2130240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2130240 is about 1459.5341722618. The cubic root of 2130240 is about 128.6696674230.

Adding to 2130240 its reverse (420312), we get a palindrome (2550552).

The spelling of 2130240 in words is "two million, one hundred thirty thousand, two hundred forty".