78432160 has 24 divisors (see below), whose sum is σ = 185296356. Its totient is φ = 31372800.

The previous prime is 78432157. The next prime is 78432173. The reversal of 78432160 is 6123487.

It can be written as a sum of positive squares in 2 ways, for example, as 73068304 + 5363856 = 8548^2 + 2316^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244941 + ... + 245260.

Almost surely, 2^78432160 is an apocalyptic number.

It is an amenable number.

78432160 is an abundant number, since it is smaller than the sum of its proper divisors (106864196).

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

78432160 is a wasteful number, since it uses less digits than its factorization.

78432160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490216 (or 490208 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78432160 is about 8856.1933131566. The cubic root of 78432160 is about 428.0535059901.

The spelling of 78432160 in words is "seventy-eight million, four hundred thirty-two thousand, one hundred sixty".