11851380 has 96 divisors (see below), whose sum is σ = 39070080. Its totient is φ = 2972160.

The previous prime is 11851373. The next prime is 11851403. The reversal of 11851380 is 8315811.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8535 + ... + 9825.

It is an arithmetic number, because the mean of its divisors is an integer number (406980).

Almost surely, 2^11851380 is an apocalyptic number.

11851380 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 11851380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19535040).

11851380 is an abundant number, since it is smaller than the sum of its proper divisors (27218700).

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

11851380 is a wasteful number, since it uses less digits than its factorization.

11851380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326 (or 1318 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 11851380 is about 3442.5833323247. The cubic root of 11851380 is about 227.9937671426.

The spelling of 11851380 in words is "eleven million, eight hundred fifty-one thousand, three hundred eighty".