78840360 has 48 divisors (see below), whose sum is σ = 256232340. Its totient is φ = 21024000.

The previous prime is 78840337. The next prime is 78840379. The reversal of 78840360 is 6304887.

It can be written as a sum of positive squares in 2 ways, for example, as 68459076 + 10381284 = 8274^2 + 3222^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109141 + ... + 109860.

Almost surely, 2^78840360 is an apocalyptic number.

It is an amenable number.

78840360 is an abundant number, since it is smaller than the sum of its proper divisors (177391980).

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

78840360 is a wasteful number, since it uses less digits than its factorization.

78840360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219018 (or 219011 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 78840360 is about 8879.2094242675. The cubic root of 78840360 is about 428.7948225827.

The spelling of 78840360 in words is "seventy-eight million, eight hundred forty thousand, three hundred sixty".