78432848 has 80 divisors (see below), whose sum is σ = 170989056. Its totient is φ = 34621440.

The previous prime is 78432839. The next prime is 78432881. The reversal of 78432848 is 84823487.

It is a super-2 number, since 2×78432848² = 12303423290782208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78432799 and 78432808.

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 15 ways as a sum of consecutive naturals, for example, 694040 + ... + 694152.

Almost surely, 2^78432848 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 78432848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85494528).

78432848 is an abundant number, since it is smaller than the sum of its proper divisors (92556208).

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

78432848 is a wasteful number, since it uses less digits than its factorization.

78432848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 246 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 78432848 is about 8856.2321559453. The cubic root of 78432848 is about 428.0547576024.

The spelling of 78432848 in words is "seventy-eight million, four hundred thirty-two thousand, eight hundred forty-eight".