11090940 has 48 divisors (see below), whose sum is σ = 35492352. Its totient is φ = 2534976.

The previous prime is 11090921. The next prime is 11090941. The reversal of 11090940 is 4909011.

11090940 = T₃₅₅ + T₃₅₆ + ... + T₄₈₀.

It is a self number, because there is not a number n which added to its sum of digits gives 11090940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11090941) 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, 12784 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (739424).

Almost surely, 2^11090940 is an apocalyptic number.

11090940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11090940 is an abundant number, since it is smaller than the sum of its proper divisors (24401412).

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

11090940 is a wasteful number, since it uses less digits than its factorization.

11090940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26426 (or 26424 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 11090940 is about 3330.3062922200. The cubic root of 11090940 is about 223.0092028350.

Adding to 11090940 its reverse (4909011), we get a palindrome (15999951).

The spelling of 11090940 in words is "eleven million, ninety thousand, nine hundred forty".