1178424864 has 36 divisors (see below), whose sum is σ = 3351146526. Its totient is φ = 392808192.

The previous prime is 1178424827. The next prime is 1178424883. The reversal of 1178424864 is 4684248711.

It can be written as a sum of positive squares in only one way, i.e., 1162264464 + 16160400 = 34092^2 + 4020^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2045589 + ... + 2046164.

Almost surely, 2^1178424864 is an apocalyptic number.

It is an amenable number.

1178424864 is an abundant number, since it is smaller than the sum of its proper divisors (2172721662).

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

1178424864 is a wasteful number, since it uses less digits than its factorization.

1178424864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091769 (or 4091758 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 1178424864 is about 34328.1934275604. The cubic root of 1178424864 is about 1056.2514036418.

The spelling of 1178424864 in words is "one billion, one hundred seventy-eight million, four hundred twenty-four thousand, eight hundred sixty-four".