11122240 has 28 divisors (see below), whose sum is σ = 26485596. Its totient is φ = 4448768.

The previous prime is 11122229. The next prime is 11122247. The reversal of 11122240 is 4222111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3326976 + 7795264 = 1824^2 + 2792^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11122240.

It is not an unprimeable number, because it can be changed into a prime (11122247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17059 + ... + 17698.

Almost surely, 2^11122240 is an apocalyptic number.

11122240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122240 is an abundant number, since it is smaller than the sum of its proper divisors (15363356).

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

11122240 is an equidigital number, since it uses as much as digits as its factorization.

11122240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34774 (or 34764 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 11122240 is about 3335.0022488748. The cubic root of 11122240 is about 223.2187922839.

Adding to 11122240 its reverse (4222111), we get a palindrome (15344351).

The spelling of 11122240 in words is "eleven million, one hundred twenty-two thousand, two hundred forty".