11315240 has 16 divisors (see below), whose sum is σ = 25459380. Its totient is φ = 4526080.

The previous prime is 11315237. The next prime is 11315267. The reversal of 11315240 is 4251311.

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 1493284 = 3134^2 + 1222^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141401 + ... + 141480.

Almost surely, 2^11315240 is an apocalyptic number.

11315240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11315240 is an abundant number, since it is smaller than the sum of its proper divisors (14144140).

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

11315240 is a wasteful number, since it uses less digits than its factorization.

11315240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282892 (or 282888 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11315240 is about 3363.8133122990. The cubic root of 11315240 is about 224.5025388145.

Adding to 11315240 its reverse (4251311), we get a palindrome (15566551).

The spelling of 11315240 in words is "eleven million, three hundred fifteen thousand, two hundred forty".