388111946 has 8 divisors (see below), whose sum is σ = 590143044. Its totient is φ = 191397600.

The previous prime is 388111903. The next prime is 388111963. The reversal of 388111946 is 649111883.

It can be written as a sum of positive squares in 2 ways, for example, as 386319025 + 1792921 = 19655^2 + 1339^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1329005 + ... + 1329296.

Almost surely, 2^388111946 is an apocalyptic number.

388111946 is a deficient number, since it is larger than the sum of its proper divisors (202031098).

388111946 is a wasteful number, since it uses less digits than its factorization.

388111946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658376.

The product of its digits is 41472, while the sum is 41.

The square root of 388111946 is about 19700.5569972019. The cubic root of 388111946 is about 729.4334416823.

The spelling of 388111946 in words is "three hundred eighty-eight million, one hundred eleven thousand, nine hundred forty-six".