1178367280 has 80 divisors (see below), whose sum is σ = 2866316544. Its totient is φ = 449672960.

The previous prime is 1178367271. The next prime is 1178367283. The reversal of 1178367280 is 827638711.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1178367283) 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, 1079535 + ... + 1080625.

Almost surely, 2^1178367280 is an apocalyptic number.

1178367280 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 1178367280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433158272).

1178367280 is an abundant number, since it is smaller than the sum of its proper divisors (1687949264).

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

1178367280 is a wasteful number, since it uses less digits than its factorization.

1178367280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714 (or 1708 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 1178367280 is about 34327.3546898097. The cubic root of 1178367280 is about 1056.2341987062.

The spelling of 1178367280 in words is "one billion, one hundred seventy-eight million, three hundred sixty-seven thousand, two hundred eighty".