1168640 has 72 divisors (see below), whose sum is σ = 3090528. Its totient is φ = 419840.

The previous prime is 1168639. The next prime is 1168693. The reversal of 1168640 is 468611.

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 7 ways as a sum of consecutive naturals, for example, 14039 + ... + 14121.

It is an arithmetic number, because the mean of its divisors is an integer number (42924).

2^1168640 is an apocalyptic number.

1168640 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 1168640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1545264).

1168640 is an abundant number, since it is smaller than the sum of its proper divisors (1921888).

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

1168640 is an equidigital number, since it uses as much as digits as its factorization.

1168640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1168640 is about 1081.0365396230. The cubic root of 1168640 is about 105.3319802564.

The spelling of 1168640 in words is "one million, one hundred sixty-eight thousand, six hundred forty".