11313240 has 64 divisors (see below), whose sum is σ = 35424000. Its totient is φ = 2884992.

The previous prime is 11313209. The next prime is 11313271. The reversal of 11313240 is 4231311.

It is an interprime number because it is at equal distance from previous prime (11313209) and next prime (11313271).

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711 + ... + 4809.

It is an arithmetic number, because the mean of its divisors is an integer number (553500).

Almost surely, 2^11313240 is an apocalyptic number.

11313240 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 11313240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17712000).

11313240 is an abundant number, since it is smaller than the sum of its proper divisors (24110760).

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

11313240 is a wasteful number, since it uses less digits than its factorization.

11313240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4136 (or 4132 counting only the distinct ones).

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

The square root of 11313240 is about 3363.5160175031. The cubic root of 11313240 is about 224.4893108867.

Adding to 11313240 its reverse (4231311), we get a palindrome (15544551).

It can be divided in two parts, 1131 and 3240, that added together give a triangular number (4371 = T₉₃).

The spelling of 11313240 in words is "eleven million, three hundred thirteen thousand, two hundred forty".