1178571478 has 24 divisors (see below), whose sum is σ = 2146254192. Its totient is φ = 475388544.

The previous prime is 1178571469. The next prime is 1178571479. The reversal of 1178571478 is 8741758711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1178571479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141601 + ... + 149692.

It is an arithmetic number, because the mean of its divisors is an integer number (89427258).

Almost surely, 2^1178571478 is an apocalyptic number.

1178571478 is a deficient number, since it is larger than the sum of its proper divisors (967682714).

1178571478 is a wasteful number, since it uses less digits than its factorization.

1178571478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291336 (or 291319 counting only the distinct ones).

The product of its digits is 439040, while the sum is 49.

The square root of 1178571478 is about 34330.3288361763. The cubic root of 1178571478 is about 1056.2952064122.

The spelling of 1178571478 in words is "one billion, one hundred seventy-eight million, five hundred seventy-one thousand, four hundred seventy-eight".