393924690004 has 12 divisors (see below), whose sum is σ = 689372609184. Its totient is φ = 196961087384.

The previous prime is 393924689957. The next prime is 393924690011. The reversal of 393924690004 is 400096429393.

It is a super-2 number, since 2×393924690004² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 393924690004.

It is a congruent number.

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, 1013937 + ... + 1347559.

It is an arithmetic number, because the mean of its divisors is an integer number (57447717432).

Almost surely, 2^393924690004 is an apocalyptic number.

It is an amenable number.

393924690004 is a deficient number, since it is larger than the sum of its proper divisors (295447919180).

393924690004 is a wasteful number, since it uses less digits than its factorization.

393924690004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628814 (or 628812 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 393924690004 in words is "three hundred ninety-three billion, nine hundred twenty-four million, six hundred ninety thousand, four".