393730192909 has 16 divisors (see below), whose sum is σ = 404999142912. Its totient is φ = 382589733888.

The previous prime is 393730192883. The next prime is 393730192939. The reversal of 393730192909 is 909291037393.

It is not a de Polignac number, because 393730192909 - 2¹⁹ = 393729668621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 393730192909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393730192939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4519567 + ... + 4605859.

It is an arithmetic number, because the mean of its divisors is an integer number (25312446432).

Almost surely, 2^393730192909 is an apocalyptic number.

It is an amenable number.

393730192909 is a deficient number, since it is larger than the sum of its proper divisors (11268950003).

393730192909 is a wasteful number, since it uses less digits than its factorization.

393730192909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87036.

The product of its (nonzero) digits is 2480058, while the sum is 55.

The spelling of 393730192909 in words is "three hundred ninety-three billion, seven hundred thirty million, one hundred ninety-two thousand, nine hundred nine".