11242740 has 24 divisors (see below), whose sum is σ = 31479840. Its totient is φ = 2998048.

The previous prime is 11242717. The next prime is 11242753. The reversal of 11242740 is 4724211.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 93630 + ... + 93749.

It is an arithmetic number, because the mean of its divisors is an integer number (1311660).

Almost surely, 2^11242740 is an apocalyptic number.

11242740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11242740 is an abundant number, since it is smaller than the sum of its proper divisors (20237100).

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

11242740 is a wasteful number, since it uses less digits than its factorization.

11242740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187391 (or 187389 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 11242740 is about 3353.0195346881. The cubic root of 11242740 is about 224.0220269581.

Adding to 11242740 its reverse (4724211), we get a palindrome (15966951).

The spelling of 11242740 in words is "eleven million, two hundred forty-two thousand, seven hundred forty".