78459380 has 24 divisors (see below), whose sum is σ = 167559840. Its totient is φ = 30851360.

The previous prime is 78459373. The next prime is 78459383. The reversal of 78459380 is 8395487.

78459380 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

78459380 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78459383) 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, 32066 + ... + 34425.

It is an arithmetic number, because the mean of its divisors is an integer number (6981660).

Almost surely, 2^78459380 is an apocalyptic number.

It is an amenable number.

78459380 is an abundant number, since it is smaller than the sum of its proper divisors (89100460).

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

78459380 is a wasteful number, since it uses less digits than its factorization.

78459380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66559 (or 66557 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 78459380 is about 8857.7299575004. The cubic root of 78459380 is about 428.1030191354.

The spelling of 78459380 in words is "seventy-eight million, four hundred fifty-nine thousand, three hundred eighty".