78543260 has 24 divisors (see below), whose sum is σ = 165110400. Its totient is φ = 31385024.

The previous prime is 78543221. The next prime is 78543263. The reversal of 78543260 is 6234587.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 78543260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78543263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31541 + ... + 33939.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2^78543260 is an apocalyptic number.

It is an amenable number.

78543260 is an abundant number, since it is smaller than the sum of its proper divisors (86567140).

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

78543260 is a wasteful number, since it uses less digits than its factorization.

78543260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045 (or 4043 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 78543260 is about 8862.4635401225. The cubic root of 78543260 is about 428.2555247679.

The spelling of 78543260 in words is "seventy-eight million, five hundred forty-three thousand, two hundred sixty".