11122440 has 64 divisors (see below), whose sum is σ = 38136960. Its totient is φ = 2542080.

The previous prime is 11122427. The next prime is 11122451. The reversal of 11122440 is 4422111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5781 + ... + 7460.

It is an arithmetic number, because the mean of its divisors is an integer number (595890).

Almost surely, 2^11122440 is an apocalyptic number.

11122440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122440 is an abundant number, since it is smaller than the sum of its proper divisors (27014520).

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

11122440 is a wasteful number, since it uses less digits than its factorization.

11122440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13262 (or 13258 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 11122440 is about 3335.0322337273. The cubic root of 11122440 is about 223.2201302485.

Adding to 11122440 its reverse (4422111), we get a palindrome (15544551).

The spelling of 11122440 in words is "eleven million, one hundred twenty-two thousand, four hundred forty".