388085894 has 32 divisors (see below), whose sum is σ = 705568320. Its totient is φ = 156284928.

The previous prime is 388085861. The next prime is 388085903. The reversal of 388085894 is 498580883.

It is a super-2 number, since 2×388085894² = 301221322243558472, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 231692 + ... + 233360.

It is an arithmetic number, because the mean of its divisors is an integer number (22049010).

Almost surely, 2^388085894 is an apocalyptic number.

388085894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

388085894 is a deficient number, since it is larger than the sum of its proper divisors (317482426).

388085894 is a wasteful number, since it uses less digits than its factorization.

388085894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 2211840, while the sum is 53.

The square root of 388085894 is about 19699.8957865264. The cubic root of 388085894 is about 729.4171202528.

The spelling of 388085894 in words is "three hundred eighty-eight million, eighty-five thousand, eight hundred ninety-four".