388200385 has 4 divisors (see below), whose sum is σ = 465840468. Its totient is φ = 310560304.

The previous prime is 388200359. The next prime is 388200403. The reversal of 388200385 is 583002883.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74166544 + 314033841 = 8612^2 + 17721^2 .

It is a cyclic number.

It is not a de Polignac number, because 388200385 - 2¹⁵ = 388167617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38820034 + ... + 38820043.

It is an arithmetic number, because the mean of its divisors is an integer number (116460117).

Almost surely, 2^388200385 is an apocalyptic number.

It is an amenable number.

388200385 is a deficient number, since it is larger than the sum of its proper divisors (77640083).

388200385 is an equidigital number, since it uses as much as digits as its factorization.

388200385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77640082.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 388200385 is about 19702.8014505552. The cubic root of 388200385 is about 729.4888427639.

The spelling of 388200385 in words is "three hundred eighty-eight million, two hundred thousand, three hundred eighty-five".