388106534 has 4 divisors (see below), whose sum is σ = 582159804. Its totient is φ = 194053266.

The previous prime is 388106513. The next prime is 388106557. The reversal of 388106534 is 435601883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435601883 = 1709 ⋅254887.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97026632 + ... + 97026635.

It is an arithmetic number, because the mean of its divisors is an integer number (145539951).

Almost surely, 2^388106534 is an apocalyptic number.

388106534 is a deficient number, since it is larger than the sum of its proper divisors (194053270).

388106534 is a wasteful number, since it uses less digits than its factorization.

388106534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194053269.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 388106534 is about 19700.4196402006. The cubic root of 388106534 is about 729.4300511552.

The spelling of 388106534 in words is "three hundred eighty-eight million, one hundred six thousand, five hundred thirty-four".