78435382 has 32 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 33441408.

The previous prime is 78435349. The next prime is 78435421. The reversal of 78435382 is 28353487.

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 15 ways as a sum of consecutive naturals, for example, 12219 + ... + 17497.

It is an arithmetic number, because the mean of its divisors is an integer number (4276800).

Almost surely, 2^78435382 is an apocalyptic number.

78435382 is a deficient number, since it is larger than the sum of its proper divisors (58422218).

78435382 is a wasteful number, since it uses less digits than its factorization.

78435382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340.

The product of its digits is 161280, while the sum is 40.

The square root of 78435382 is about 8856.3752178868. The cubic root of 78435382 is about 428.0593674017.

It can be divided in two parts, 7843 and 5382, that added together give a square (13225 = 115²).

The spelling of 78435382 in words is "seventy-eight million, four hundred thirty-five thousand, three hundred eighty-two".