78581342 has 16 divisors (see below), whose sum is σ = 139057152. Its totient is φ = 32591160.

The previous prime is 78581341. The next prime is 78581353. The reversal of 78581342 is 24318587.

It is a junction number, because it is equal to n+sod(n) for n = 78581296 and 78581305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78581341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90098 + ... + 90965.

It is an arithmetic number, because the mean of its divisors is an integer number (8691072).

Almost surely, 2^78581342 is an apocalyptic number.

78581342 is a deficient number, since it is larger than the sum of its proper divisors (60475810).

78581342 is a wasteful number, since it uses less digits than its factorization.

78581342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181103.

The product of its digits is 53760, while the sum is 38.

The square root of 78581342 is about 8864.6117794295. The cubic root of 78581342 is about 428.3247273610.

The spelling of 78581342 in words is "seventy-eight million, five hundred eighty-one thousand, three hundred forty-two".