388684106 has 8 divisors (see below), whose sum is σ = 586247844. Its totient is φ = 193268160.

The previous prime is 388684097. The next prime is 388684133. The reversal of 388684106 is 601486883.

It can be written as a sum of positive squares in 2 ways, for example, as 267486025 + 121198081 = 16355^2 + 11009^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536495 + ... + 537218.

Almost surely, 2^388684106 is an apocalyptic number.

388684106 is a deficient number, since it is larger than the sum of its proper divisors (197563738).

388684106 is a wasteful number, since it uses less digits than its factorization.

388684106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073896.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 388684106 is about 19715.0730660579. The cubic root of 388684106 is about 729.7917126408.

The spelling of 388684106 in words is "three hundred eighty-eight million, six hundred eighty-four thousand, one hundred six".