11821260 has 48 divisors (see below), whose sum is σ = 36110592. Its totient is φ = 2865600.

The previous prime is 11821237. The next prime is 11821267. The reversal of 11821260 is 6212811.

It is not an unprimeable number, because it can be changed into a prime (11821267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8296 + ... + 9615.

It is an arithmetic number, because the mean of its divisors is an integer number (752304).

Almost surely, 2^11821260 is an apocalyptic number.

11821260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11821260 is an abundant number, since it is smaller than the sum of its proper divisors (24289332).

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

11821260 is a wasteful number, since it uses less digits than its factorization.

11821260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17934 (or 17932 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 11821260 is about 3438.2059275151. The cubic root of 11821260 is about 227.8004563755.

It can be divided in two parts, 1182 and 1260, that added together give a palindrome (2442).

The spelling of 11821260 in words is "eleven million, eight hundred twenty-one thousand, two hundred sixty".