388075146 has 16 divisors (see below), whose sum is σ = 792664704. Its totient is φ = 126605984.

The previous prime is 388075141. The next prime is 388075153. The reversal of 388075146 is 641570883.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 388075098 and 388075107.

It is not an unprimeable number, because it can be changed into a prime (388075141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687795 + ... + 688358.

It is an arithmetic number, because the mean of its divisors is an integer number (49541544).

Almost surely, 2^388075146 is an apocalyptic number.

388075146 is an abundant number, since it is smaller than the sum of its proper divisors (404589558).

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

388075146 is a wasteful number, since it uses less digits than its factorization.

388075146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376205.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 388075146 is about 19699.6229913164. The cubic root of 388075146 is about 729.4103864793.

The spelling of 388075146 in words is "three hundred eighty-eight million, seventy-five thousand, one hundred forty-six".