388285655 has 8 divisors (see below), whose sum is σ = 486201312. Its totient is φ = 297122848.

The previous prime is 388285643. The next prime is 388285663. The reversal of 388285655 is 556582883.

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

It is a cyclic number.

It is not a de Polignac number, because 388285655 - 2¹² = 388281559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1688084 + ... + 1688313.

It is an arithmetic number, because the mean of its divisors is an integer number (60775164).

Almost surely, 2^388285655 is an apocalyptic number.

388285655 is a deficient number, since it is larger than the sum of its proper divisors (97915657).

388285655 is a wasteful number, since it uses less digits than its factorization.

388285655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376425.

The product of its digits is 2304000, while the sum is 50.

The square root of 388285655 is about 19704.9652372188. The cubic root of 388285655 is about 729.5422507134.

The spelling of 388285655 in words is "three hundred eighty-eight million, two hundred eighty-five thousand, six hundred fifty-five".