78732368 has 60 divisors (see below), whose sum is σ = 180265248. Its totient is φ = 33022080.

The previous prime is 78732349. The next prime is 78732383. The reversal of 78732368 is 86323787.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28421 + ... + 31067.

Almost surely, 2^78732368 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 78732368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90132624).

78732368 is an abundant number, since it is smaller than the sum of its proper divisors (101532880).

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

78732368 is a wasteful number, since it uses less digits than its factorization.

78732368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692 (or 2673 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 78732368 is about 8873.1261683806. The cubic root of 78732368 is about 428.5989517985.

The spelling of 78732368 in words is "seventy-eight million, seven hundred thirty-two thousand, three hundred sixty-eight".