393435727972 has 24 divisors (see below), whose sum is σ = 833158013184. Its totient is φ = 158696764032.

The previous prime is 393435727969. The next prime is 393435728041. The reversal of 393435727972 is 279727534393.

It is a self number, because there is not a number n which added to its sum of digits gives 393435727972.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413272348 + ... + 413273299.

It is an arithmetic number, because the mean of its divisors is an integer number (34714917216).

Almost surely, 2^393435727972 is an apocalyptic number.

It is an amenable number.

393435727972 is an abundant number, since it is smaller than the sum of its proper divisors (439722285212).

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

393435727972 is a wasteful number, since it uses less digits than its factorization.

393435727972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826545675 (or 826545673 counting only the distinct ones).

The product of its digits is 60011280, while the sum is 61.

The spelling of 393435727972 in words is "three hundred ninety-three billion, four hundred thirty-five million, seven hundred twenty-seven thousand, nine hundred seventy-two".