388074681 has 12 divisors (see below), whose sum is σ = 564266560. Its totient is φ = 257002200.

The previous prime is 388074671. The next prime is 388074697. The reversal of 388074681 is 186470883.

It is not a de Polignac number, because 388074681 - 2⁵ = 388074649 is a prime.

It is a super-2 number, since 2×388074681² = 301203916066503522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388074671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141421 + ... + 144138.

Almost surely, 2^388074681 is an apocalyptic number.

It is an amenable number.

388074681 is a deficient number, since it is larger than the sum of its proper divisors (176191879).

388074681 is a wasteful number, since it uses less digits than its factorization.

388074681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285716 (or 285713 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 388074681 is about 19699.6111890565. The cubic root of 388074681 is about 729.4100951474.

The spelling of 388074681 in words is "three hundred eighty-eight million, seventy-four thousand, six hundred eighty-one".