388381822 has 16 divisors (see below), whose sum is σ = 599621760. Its totient is φ = 188530848.

The previous prime is 388381811. The next prime is 388381853. The reversal of 388381822 is 228183883.

It is a congruent number.

It is an unprimeable number.

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, 29968 + ... + 40924.

It is an arithmetic number, because the mean of its divisors is an integer number (37476360).

Almost surely, 2^388381822 is an apocalyptic number.

388381822 is a deficient number, since it is larger than the sum of its proper divisors (211239938).

388381822 is a wasteful number, since it uses less digits than its factorization.

388381822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11475.

The product of its digits is 147456, while the sum is 43.

The square root of 388381822 is about 19707.4052579227. The cubic root of 388381822 is about 729.6024745010.

The spelling of 388381822 in words is "three hundred eighty-eight million, three hundred eighty-one thousand, eight hundred twenty-two".