11263140 has 108 divisors (see below), whose sum is σ = 39773916. Its totient is φ = 2572416.

The previous prime is 11263121. The next prime is 11263157. The reversal of 11263140 is 4136211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5731236 + 5531904 = 2394^2 + 2352^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 8182 + ... + 9458.

It is an arithmetic number, because the mean of its divisors is an integer number (368277).

Almost surely, 2^11263140 is an apocalyptic number.

11263140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11263140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19886958).

11263140 is an abundant number, since it is smaller than the sum of its proper divisors (28510776).

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

11263140 is a wasteful number, since it uses less digits than its factorization.

11263140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 11263140 is about 3356.0601901635. The cubic root of 11263140 is about 224.1574413976.

Adding to 11263140 its reverse (4136211), we get a palindrome (15399351).

The spelling of 11263140 in words is "eleven million, two hundred sixty-three thousand, one hundred forty".