78432260 has 24 divisors (see below), whose sum is σ = 166409880. Its totient is φ = 31048704.

The previous prime is 78432253. The next prime is 78432281. The reversal of 78432260 is 6223487.

It can be written as a sum of positive squares in 4 ways, for example, as 18957316 + 59474944 = 4354^2 + 7712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18275 + ... + 22154.

It is an arithmetic number, because the mean of its divisors is an integer number (6933745).

Almost surely, 2^78432260 is an apocalyptic number.

It is an amenable number.

78432260 is an abundant number, since it is smaller than the sum of its proper divisors (87977620).

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

78432260 is a wasteful number, since it uses less digits than its factorization.

78432260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40535 (or 40533 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 78432260 is about 8856.1989589214. The cubic root of 78432260 is about 428.0536879110.

The spelling of 78432260 in words is "seventy-eight million, four hundred thirty-two thousand, two hundred sixty".