393073842 has 32 divisors (see below), whose sum is σ = 899344512. Its totient is φ = 112195584.

The previous prime is 393073817. The next prime is 393073883. The reversal of 393073842 is 248370393.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 393073842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44368 + ... + 52484.

It is an arithmetic number, because the mean of its divisors is an integer number (28104516).

Almost surely, 2^393073842 is an apocalyptic number.

393073842 is an abundant number, since it is smaller than the sum of its proper divisors (506270670).

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

393073842 is a wasteful number, since it uses less digits than its factorization.

393073842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9282.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 393073842 is about 19826.0899322080. The cubic root of 393073842 is about 732.5288177614.

The spelling of 393073842 in words is "three hundred ninety-three million, seventy-three thousand, eight hundred forty-two".