2113240 has 32 divisors (see below), whose sum is σ = 4963680. Its totient is φ = 808192.

The previous prime is 2113229. The next prime is 2113249. The reversal of 2113240 is 423112.

It is a self number, because there is not a number n which added to its sum of digits gives 2113240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229 + ... + 2068.

It is an arithmetic number, because the mean of its divisors is an integer number (155115).

2^2113240 is an apocalyptic number.

2113240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113240 is an abundant number, since it is smaller than the sum of its proper divisors (2850440).

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

2113240 is a wasteful number, since it uses less digits than its factorization.

2113240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2113240 is about 1453.6987308242. The cubic root of 2113240 is about 128.3264777732.

Adding to 2113240 its reverse (423112), we get a palindrome (2536352).

The spelling of 2113240 in words is "two million, one hundred thirteen thousand, two hundred forty".