1178240 has 64 divisors (see below), whose sum is σ = 3231360. Its totient is φ = 402432.

The previous prime is 1178239. The next prime is 1178263. The reversal of 1178240 is 428711.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4349 + ... + 4611.

It is an arithmetic number, because the mean of its divisors is an integer number (50490).

2^1178240 is an apocalyptic number.

1178240 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 1178240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615680).

1178240 is an abundant number, since it is smaller than the sum of its proper divisors (2053120).

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

1178240 is an equidigital number, since it uses as much as digits as its factorization.

1178240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1178240 is about 1085.4676411575. The cubic root of 1178240 is about 105.6196168025.

The spelling of 1178240 in words is "one million, one hundred seventy-eight thousand, two hundred forty".