388345826 has 16 divisors (see below), whose sum is σ = 668921760. Its totient is φ = 167230080.

The previous prime is 388345813. The next prime is 388345829. The reversal of 388345826 is 628543883.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (388345829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464111 + ... + 464946.

It is an arithmetic number, because the mean of its divisors is an integer number (41807610).

Almost surely, 2^388345826 is an apocalyptic number.

388345826 is a deficient number, since it is larger than the sum of its proper divisors (280575934).

388345826 is a wasteful number, since it uses less digits than its factorization.

388345826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929089.

The product of its digits is 1105920, while the sum is 47.

The square root of 388345826 is about 19706.4919759961. The cubic root of 388345826 is about 729.5799334683.

The spelling of 388345826 in words is "three hundred eighty-eight million, three hundred forty-five thousand, eight hundred twenty-six".