78814160 has 20 divisors (see below), whose sum is σ = 183243108. Its totient is φ = 31525632.

The previous prime is 78814139. The next prime is 78814171. The reversal of 78814160 is 6141887.

It can be written as a sum of positive squares in 2 ways, for example, as 57395776 + 21418384 = 7576^2 + 4628^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 78814160.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 492509 + ... + 492668.

Almost surely, 2^78814160 is an apocalyptic number.

It is an amenable number.

78814160 is an abundant number, since it is smaller than the sum of its proper divisors (104428948).

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

78814160 is a wasteful number, since it uses less digits than its factorization.

78814160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985190 (or 985184 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 78814160 is about 8877.7339451011. The cubic root of 78814160 is about 428.7473187025.

The spelling of 78814160 in words is "seventy-eight million, eight hundred fourteen thousand, one hundred sixty".