11242140 has 192 divisors, whose sum is σ = 40642560. Its totient is φ = 2257920.

The previous prime is 11242123. The next prime is 11242157. The reversal of 11242140 is 4124211.

11242140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11242123) and next prime (11242157).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158305 + ... + 158375.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 2^11242140 is an apocalyptic number.

11242140 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 11242140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20321280).

11242140 is an abundant number, since it is smaller than the sum of its proper divisors (29400420).

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

11242140 is a wasteful number, since it uses less digits than its factorization.

11242140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 130 counting only the distinct ones).

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

The square root of 11242140 is about 3352.9300619011. The cubic root of 11242140 is about 224.0180417016.

Adding to 11242140 its reverse (4124211), we get a palindrome (15366351).

The spelling of 11242140 in words is "eleven million, two hundred forty-two thousand, one hundred forty".