11331240 has 32 divisors (see below), whose sum is σ = 33994080. Its totient is φ = 3021632.

The previous prime is 11331233. The next prime is 11331247. The reversal of 11331240 is 4213311.

11331240 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 (11331233) and next prime (11331247).

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

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11331247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47094 + ... + 47333.

It is an arithmetic number, because the mean of its divisors is an integer number (1062315).

Almost surely, 2^11331240 is an apocalyptic number.

11331240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331240 is an abundant number, since it is smaller than the sum of its proper divisors (22662840).

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

11331240 is a wasteful number, since it uses less digits than its factorization.

11331240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94441 (or 94437 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11331240 is about 3366.1907254343. The cubic root of 11331240 is about 224.6083061653.

Adding to 11331240 its reverse (4213311), we get a palindrome (15544551).

The spelling of 11331240 in words is "eleven million, three hundred thirty-one thousand, two hundred forty".