1185940 has 48 divisors (see below), whose sum is σ = 2927232. Its totient is φ = 395136.

The previous prime is 1185931. The next prime is 1185953. The reversal of 1185940 is 495811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1185899 and 1185908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5922 + ... + 6118.

It is an arithmetic number, because the mean of its divisors is an integer number (60984).

2^1185940 is an apocalyptic number.

1185940 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 1185940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463616).

1185940 is an abundant number, since it is smaller than the sum of its proper divisors (1741292).

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

1185940 is a wasteful number, since it uses less digits than its factorization.

1185940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1185940 is about 1089.0087235647. The cubic root of 1185940 is about 105.8491981645.

The spelling of 1185940 in words is "one million, one hundred eighty-five thousand, nine hundred forty".