11819844 has 45 divisors (see below), whose sum is σ = 31062031. Its totient is φ = 3919320.

The previous prime is 11819839. The next prime is 11819887. The reversal of 11819844 is 44891811.

The square root of 11819844 is 3438.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11819799 and 11819808.

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 14 ways as a sum of consecutive naturals, for example, 61789 + ... + 61979.

Almost surely, 2^11819844 is an apocalyptic number.

11819844 is the 3438-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11819844

11819844 is an abundant number, since it is smaller than the sum of its proper divisors (19242187).

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

11819844 is an equidigital number, since it uses as much as digits as its factorization.

11819844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 196 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The cubic root of 11819844 is about 227.7913603816.

Multiplying 11819844 by its sum of digits (36), we get a square (425514384 = 20628²).

11819844 divided by its sum of digits (36) gives a square (328329 = 573²).

Multiplying 11819844 by its product of digits (9216), we get a square (108931682304 = 330048²).

It can be divided in two parts, 1181 and 9844, that added together give a square (11025 = 105²).

The spelling of 11819844 in words is "eleven million, eight hundred nineteen thousand, eight hundred forty-four".