78443232 has 48 divisors (see below), whose sum is σ = 235331712. Its totient is φ = 22412160.

The previous prime is 78443207. The next prime is 78443251. The reversal of 78443232 is 23234487.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 78443193 and 78443202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57694 + ... + 59037.

It is an arithmetic number, because the mean of its divisors is an integer number (4902744).

Almost surely, 2^78443232 is an apocalyptic number.

It is an amenable number.

78443232 is an abundant number, since it is smaller than the sum of its proper divisors (156888480).

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

78443232 is a wasteful number, since it uses less digits than its factorization.

78443232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116751 (or 116743 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 78443232 is about 8856.8183903702. The cubic root of 78443232 is about 428.0736473260.

The spelling of 78443232 in words is "seventy-eight million, four hundred forty-three thousand, two hundred thirty-two".