11321860 has 48 divisors (see below), whose sum is σ = 26453952. Its totient is φ = 4035200.

The previous prime is 11321839. The next prime is 11321897. The reversal of 11321860 is 6812311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nialpdrome in base 11.

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, 11175 + ... + 12145.

It is an arithmetic number, because the mean of its divisors is an integer number (551124).

Almost surely, 2^11321860 is an apocalyptic number.

11321860 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 11321860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13226976).

11321860 is an abundant number, since it is smaller than the sum of its proper divisors (15132092).

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

11321860 is a wasteful number, since it uses less digits than its factorization.

11321860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 11321860 is about 3364.7971707073. The cubic root of 11321860 is about 224.5463121404.

It can be divided in two parts, 1132 and 1860, that added together give a palindrome (2992).

The spelling of 11321860 in words is "eleven million, three hundred twenty-one thousand, eight hundred sixty".