928391040392 has 16 divisors (see below), whose sum is σ = 1783190108700. Its totient is φ = 452873678080.

The previous prime is 928391040349. The next prime is 928391040503. The reversal of 928391040392 is 293040193829.

It can be written as a sum of positive squares in 2 ways, for example, as 805746797956 + 122644242436 = 897634^2 + 350206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 928391040392.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415229917 + ... + 1415230572.

Almost surely, 2^928391040392 is an apocalyptic number.

It is an amenable number.

928391040392 is a deficient number, since it is larger than the sum of its proper divisors (854799068308).

928391040392 is a wasteful number, since it uses less digits than its factorization.

928391040392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830460536 (or 2830460532 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 928391040392 in words is "nine hundred twenty-eight billion, three hundred ninety-one million, forty thousand, three hundred ninety-two".