11190040 has 16 divisors (see below), whose sum is σ = 25177680. Its totient is φ = 4476000.

The previous prime is 11190013. The next prime is 11190041. The reversal of 11190040 is 4009111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11189996 and 11190023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11190041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139836 + ... + 139915.

It is an arithmetic number, because the mean of its divisors is an integer number (1573605).

Almost surely, 2^11190040 is an apocalyptic number.

11190040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11190040 is an abundant number, since it is smaller than the sum of its proper divisors (13987640).

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

11190040 is a wasteful number, since it uses less digits than its factorization.

11190040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279762 (or 279758 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 11190040 is about 3345.1517155430. The cubic root of 11190040 is about 223.6714464737.

Adding to 11190040 its reverse (4009111), we get a palindrome (15199151).

The spelling of 11190040 in words is "eleven million, one hundred ninety thousand, forty".