78316480 has 112 divisors (see below), whose sum is σ = 214335360. Its totient is φ = 26956800.

The previous prime is 78316451. The next prime is 78316481. The reversal of 78316480 is 8461387.

It is a happy number.

It is a super-2 number, since 2×78316480² = 12266942079180800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78316481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66295 + ... + 67465.

Almost surely, 2^78316480 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 78316480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107167680).

78316480 is an abundant number, since it is smaller than the sum of its proper divisors (136018880).

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

78316480 is a wasteful number, since it uses less digits than its factorization.

78316480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 78316480 is about 8849.6598804700. The cubic root of 78316480 is about 427.8429563298.

The spelling of 78316480 in words is "seventy-eight million, three hundred sixteen thousand, four hundred eighty".