388504081 has 8 divisors (see below), whose sum is σ = 444158720. Its totient is φ = 332887968.

The previous prime is 388504079. The next prime is 388504087. The reversal of 388504081 is 180405883.

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

It is not a de Polignac number, because 388504081 - 2¹ = 388504079 is a prime.

It is a super-2 number, since 2×388504081² = 301870841907309122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 388504081.

It is not an unprimeable number, because it can be changed into a prime (388504087) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 16840 + ... + 32566.

It is an arithmetic number, because the mean of its divisors is an integer number (55519840).

Almost surely, 2^388504081 is an apocalyptic number.

It is an amenable number.

388504081 is a deficient number, since it is larger than the sum of its proper divisors (55654639).

388504081 is a wasteful number, since it uses less digits than its factorization.

388504081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19263.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 388504081 is about 19710.5068681655. The cubic root of 388504081 is about 729.6790238361.

The spelling of 388504081 in words is "three hundred eighty-eight million, five hundred four thousand, eighty-one".