1178496018 has 48 divisors (see below), whose sum is σ = 2921196096. Its totient is φ = 336365280.

The previous prime is 1178496017. The next prime is 1178496023. The reversal of 1178496018 is 8106948711.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1178496017) 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, 133180 + ... + 141752.

It is an arithmetic number, because the mean of its divisors is an integer number (60858252).

Almost surely, 2^1178496018 is an apocalyptic number.

1178496018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1178496018 is an abundant number, since it is smaller than the sum of its proper divisors (1742700078).

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

1178496018 is a wasteful number, since it uses less digits than its factorization.

1178496018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9679 (or 9676 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 1178496018 is about 34329.2297903696. The cubic root of 1178496018 is about 1056.2726622450.

The spelling of 1178496018 in words is "one billion, one hundred seventy-eight million, four hundred ninety-six thousand, eighteen".