1178478 has 48 divisors (see below), whose sum is σ = 2995200. Its totient is φ = 327888.

The previous prime is 1178461. The next prime is 1178479. The reversal of 1178478 is 8748711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1178479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5823 + ... + 6021.

It is an arithmetic number, because the mean of its divisors is an integer number (62400).

2^1178478 is an apocalyptic number.

1178478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1178478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497600).

1178478 is an abundant number, since it is smaller than the sum of its proper divisors (1816722).

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

1178478 is a wasteful number, since it uses less digits than its factorization.

1178478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 258 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The square root of 1178478 is about 1085.5772657900. The cubic root of 1178478 is about 105.6267279108.

It can be divided in two parts, 117847 and 8, that added together give a triangular number (117855 = T₄₈₅).

The spelling of 1178478 in words is "one million, one hundred seventy-eight thousand, four hundred seventy-eight".