78831360 has 144 divisors (see below), whose sum is σ = 279864480. Its totient is φ = 21012480.

The previous prime is 78831343. The next prime is 78831383. The reversal of 78831360 is 6313887.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 33420 + ... + 35700.

Almost surely, 2^78831360 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 78831360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139932240).

78831360 is an abundant number, since it is smaller than the sum of its proper divisors (201033120).

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

78831360 is a wasteful number, since it uses less digits than its factorization.

78831360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311 (or 2291 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 78831360 is about 8878.7026079265. The cubic root of 78831360 is about 428.7785056427.

The spelling of 78831360 in words is "seventy-eight million, eight hundred thirty-one thousand, three hundred sixty".