1178980 has 48 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 408320.

The previous prime is 1178977. The next prime is 1178981. The reversal of 1178980 is 898711.

It is not an unprimeable number, because it can be changed into a prime (1178981) 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, 4944 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2^1178980 is an apocalyptic number.

1178980 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 1178980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415232).

1178980 is an abundant number, since it is smaller than the sum of its proper divisors (1651484).

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

1178980 is a wasteful number, since it uses less digits than its factorization.

1178980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 1178980 is about 1085.8084545628. The cubic root of 1178980 is about 105.6417238321.

It can be divided in two parts, 1178 and 980, that multiplied together give a triangular number (1154440 = T₁₅₁₉).

The spelling of 1178980 in words is "one million, one hundred seventy-eight thousand, nine hundred eighty".