388113933 has 8 divisors (see below), whose sum is σ = 517648768. Its totient is φ = 258660864.

The previous prime is 388113923. The next prime is 388113967. The reversal of 388113933 is 339311883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 388113933 - 2²⁸ = 119678477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 388113891 and 388113900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388113923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8341 + ... + 29082.

It is an arithmetic number, because the mean of its divisors is an integer number (64706096).

Almost surely, 2^388113933 is an apocalyptic number.

It is an amenable number.

388113933 is a deficient number, since it is larger than the sum of its proper divisors (129534835).

388113933 is a wasteful number, since it uses less digits than its factorization.

388113933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40883.

The product of its digits is 46656, while the sum is 39.

The square root of 388113933 is about 19700.6074271836. The cubic root of 388113933 is about 729.4346864964.

The spelling of 388113933 in words is "three hundred eighty-eight million, one hundred thirteen thousand, nine hundred thirty-three".