1178916492 has 24 divisors (see below), whose sum is σ = 2962405936. Its totient is φ = 362743488.

The previous prime is 1178916467. The next prime is 1178916499. The reversal of 1178916492 is 2946198711.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1178916499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3778423 + ... + 3778734.

Almost surely, 2^1178916492 is an apocalyptic number.

1178916492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1178916492 is an abundant number, since it is smaller than the sum of its proper divisors (1783489444).

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

1178916492 is a wasteful number, since it uses less digits than its factorization.

1178916492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557177 (or 7557175 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 1178916492 is about 34335.3533839394. The cubic root of 1178916492 is about 1056.3982693392.

The spelling of 1178916492 in words is "one billion, one hundred seventy-eight million, nine hundred sixteen thousand, four hundred ninety-two".