388349193 has 4 divisors (see below), whose sum is σ = 517798928. Its totient is φ = 258899460.

The previous prime is 388349191. The next prime is 388349239. The reversal of 388349193 is 391943883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 388349193 - 2¹ = 388349191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388349191) 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, 64724863 + ... + 64724868.

It is an arithmetic number, because the mean of its divisors is an integer number (129449732).

Almost surely, 2^388349193 is an apocalyptic number.

It is an amenable number.

388349193 is a deficient number, since it is larger than the sum of its proper divisors (129449735).

388349193 is a wasteful number, since it uses less digits than its factorization.

388349193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129449734.

The product of its digits is 559872, while the sum is 48.

The square root of 388349193 is about 19706.5774045114. The cubic root of 388349193 is about 729.5820419743.

The spelling of 388349193 in words is "three hundred eighty-eight million, three hundred forty-nine thousand, one hundred ninety-three".