78480380 has 48 divisors (see below), whose sum is σ = 186006240. Its totient is φ = 27552000.

The previous prime is 78480379. The next prime is 78480473. The reversal of 78480380 is 8308487.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230 + ... + 12530.

It is an arithmetic number, because the mean of its divisors is an integer number (3875130).

Almost surely, 2^78480380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78480380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93003120).

78480380 is an abundant number, since it is smaller than the sum of its proper divisors (107525860).

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

78480380 is a wasteful number, since it uses less digits than its factorization.

78480380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350 (or 12348 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 78480380 is about 8858.9152834870. The cubic root of 78480380 is about 428.1412102836.

The spelling of 78480380 in words is "seventy-eight million, four hundred eighty thousand, three hundred eighty".