11209340 has 24 divisors (see below), whose sum is σ = 23717232. Its totient is φ = 4449920.

The previous prime is 11209337. The next prime is 11209357. The reversal of 11209340 is 4390211.

11209340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695 + ... + 4785.

It is an arithmetic number, because the mean of its divisors is an integer number (988218).

Almost surely, 2^11209340 is an apocalyptic number.

11209340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11209340 is an abundant number, since it is smaller than the sum of its proper divisors (12507892).

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

11209340 is a wasteful number, since it uses less digits than its factorization.

11209340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237 (or 4235 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11209340 is about 3348.0352447368. The cubic root of 11209340 is about 223.7999649140.

Adding to 11209340 its reverse (4390211), we get a palindrome (15599551).

The spelling of 11209340 in words is "eleven million, two hundred nine thousand, three hundred forty".