393924996400 has 60 divisors (see below), whose sum is σ = 1019205186832. Its totient is φ = 145449227520.

The previous prime is 393924996373. The next prime is 393924996401. The reversal of 393924996400 is 4699429393.

It is not an unprimeable number, because it can be changed into a prime (393924996401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37872204 + ... + 37882603.

Almost surely, 2^393924996400 is an apocalyptic number.

It is an amenable number.

393924996400 is an abundant number, since it is smaller than the sum of its proper divisors (625280190432).

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

393924996400 is a wasteful number, since it uses less digits than its factorization.

393924996400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75754838 (or 75754827 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 58.

The spelling of 393924996400 in words is "three hundred ninety-three billion, nine hundred twenty-four million, nine hundred ninety-six thousand, four hundred".