73686042 has 24 divisors (see below), whose sum is σ = 165159540. Its totient is φ = 23714880.

The previous prime is 73686029. The next prime is 73686091. The reversal of 73686042 is 24068637.

It can be written as a sum of positive squares in 2 ways, for example, as 65270241 + 8415801 = 8079^2 + 2901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73685988 and 73686006.

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 11 ways as a sum of consecutive naturals, for example, 70059 + ... + 71102.

Almost surely, 2^73686042 is an apocalyptic number.

73686042 is an abundant number, since it is smaller than the sum of its proper divisors (91473498).

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

73686042 is a wasteful number, since it uses less digits than its factorization.

73686042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141198 (or 141195 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 73686042 is about 8584.0574322403. The cubic root of 73686042 is about 419.2390643832.

The spelling of 73686042 in words is "seventy-three million, six hundred eighty-six thousand, forty-two".