2011240 has 64 divisors (see below), whose sum is σ = 5650560. Its totient is φ = 625920.

The previous prime is 2011211. The next prime is 2011241. The reversal of 2011240 is 421102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2011241) 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, 2754 + ... + 3406.

It is an arithmetic number, because the mean of its divisors is an integer number (88290).

2^2011240 is an apocalyptic number.

2011240 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 2011240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2825280).

2011240 is an abundant number, since it is smaller than the sum of its proper divisors (3639320).

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

2011240 is a wasteful number, since it uses less digits than its factorization.

2011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2011240 is about 1418.1819347319. The cubic root of 2011240 is about 126.2276894210.

Adding to 2011240 its reverse (421102), we get a palindrome (2432342).

It can be divided in two parts, 201 and 1240, that added together give a palindrome (1441).

The spelling of 2011240 in words is "two million, eleven thousand, two hundred forty".