388906662 has 16 divisors (see below), whose sum is σ = 778464000. Its totient is φ = 129527112.

The previous prime is 388906657. The next prime is 388906669. The reversal of 388906662 is 266609883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388906669) by changing a digit.

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, 19162 + ... + 33837.

It is an arithmetic number, because the mean of its divisors is an integer number (48654000).

Almost surely, 2^388906662 is an apocalyptic number.

388906662 is an abundant number, since it is smaller than the sum of its proper divisors (389557338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388906662 is a wasteful number, since it uses less digits than its factorization.

388906662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54227.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 388906662 is about 19720.7165691311. The cubic root of 388906662 is about 729.9309761472.

The spelling of 388906662 in words is "three hundred eighty-eight million, nine hundred six thousand, six hundred sixty-two".