78796042 has 16 divisors (see below), whose sum is σ = 128207520. Its totient is φ = 36104112.

The previous prime is 78796033. The next prime is 78796043. The reversal of 78796042 is 24069787.

It is a self number, because there is not a number n which added to its sum of digits gives 78796042.

It is not an unprimeable number, because it can be changed into a prime (78796043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7288 + ... + 14515.

It is an arithmetic number, because the mean of its divisors is an integer number (8012970).

Almost surely, 2^78796042 is an apocalyptic number.

78796042 is a deficient number, since it is larger than the sum of its proper divisors (49411478).

78796042 is a wasteful number, since it uses less digits than its factorization.

78796042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21957.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 78796042 is about 8876.7134683958. The cubic root of 78796042 is about 428.7144623425.

The spelling of 78796042 in words is "seventy-eight million, seven hundred ninety-six thousand, forty-two".