388396641 has 8 divisors (see below), whose sum is σ = 518009184. Its totient is φ = 258857600.

The previous prime is 388396639. The next prime is 388396663. The reversal of 388396641 is 146693883.

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 388396641 - 2¹ = 388396639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388396601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4560 + ... + 28241.

It is an arithmetic number, because the mean of its divisors is an integer number (64751148).

Almost surely, 2^388396641 is an apocalyptic number.

It is an amenable number.

388396641 is a deficient number, since it is larger than the sum of its proper divisors (129612543).

388396641 is a wasteful number, since it uses less digits than its factorization.

388396641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36751.

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

The square root of 388396641 is about 19707.7812297580. The cubic root of 388396641 is about 729.6117538930.

The spelling of 388396641 in words is "three hundred eighty-eight million, three hundred ninety-six thousand, six hundred forty-one".