2013240 has 64 divisors (see below), whose sum is σ = 6364800. Its totient is φ = 508032.

The previous prime is 2013229. The next prime is 2013241. The reversal of 2013240 is 423102.

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 (2013241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839 + ... + 2721.

It is an arithmetic number, because the mean of its divisors is an integer number (99450).

2^2013240 is an apocalyptic number.

2013240 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 2013240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3182400).

2013240 is an abundant number, since it is smaller than the sum of its proper divisors (4351560).

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

2013240 is a wasteful number, since it uses less digits than its factorization.

2013240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 912 counting only the distinct ones).

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

The square root of 2013240 is about 1418.8868876693. The cubic root of 2013240 is about 126.2695163111.

Adding to 2013240 its reverse (423102), we get a palindrome (2436342).

The spelling of 2013240 in words is "two million, thirteen thousand, two hundred forty".