1178340 has 48 divisors (see below), whose sum is σ = 3386880. Its totient is φ = 305920.

The previous prime is 1178297. The next prime is 1178347. The reversal of 1178340 is 438711.

It is a self number, because there is not a number n which added to its sum of digits gives 1178340.

It is not an unprimeable number, because it can be changed into a prime (1178347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2221 + ... + 2699.

It is an arithmetic number, because the mean of its divisors is an integer number (70560).

2^1178340 is an apocalyptic number.

1178340 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 1178340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693440).

1178340 is an abundant number, since it is smaller than the sum of its proper divisors (2208540).

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

1178340 is a wasteful number, since it uses less digits than its factorization.

1178340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1178340 is about 1085.5137032760. The cubic root of 1178340 is about 105.6226047798.

The spelling of 1178340 in words is "one million, one hundred seventy-eight thousand, three hundred forty".