388346113 has 4 divisors (see below), whose sum is σ = 411190020. Its totient is φ = 365502208.

The previous prime is 388346107. The next prime is 388346129. The reversal of 388346113 is 311643883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 356907664 + 31438449 = 18892^2 + 5607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-388346113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388346173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11421928 + ... + 11421961.

It is an arithmetic number, because the mean of its divisors is an integer number (102797505).

Almost surely, 2^388346113 is an apocalyptic number.

It is an amenable number.

388346113 is a deficient number, since it is larger than the sum of its proper divisors (22843907).

388346113 is a wasteful number, since it uses less digits than its factorization.

388346113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22843906.

The product of its digits is 41472, while the sum is 37.

The square root of 388346113 is about 19706.4992578591. The cubic root of 388346113 is about 729.5801131959.

Adding to 388346113 its reverse (311643883), we get a palindrome (699989996).

The spelling of 388346113 in words is "three hundred eighty-eight million, three hundred forty-six thousand, one hundred thirteen".