11815260 has 48 divisors (see below), whose sum is σ = 33288192. Its totient is φ = 3131200.

The previous prime is 11815241. The next prime is 11815277. The reversal of 11815260 is 6251811.

It is a self number, because there is not a number n which added to its sum of digits gives 11815260.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10945 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (693504).

Almost surely, 2^11815260 is an apocalyptic number.

11815260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11815260 is an abundant number, since it is smaller than the sum of its proper divisors (21472932).

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

11815260 is a wasteful number, since it uses less digits than its factorization.

11815260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 11815260 is about 3437.3332686837. Note that the first 3 decimals coincide. The cubic root of 11815260 is about 227.7619090450.

It can be divided in two parts, 1181 and 5260, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 11815260 in words is "eleven million, eight hundred fifteen thousand, two hundred sixty".