388674385 has 24 divisors (see below), whose sum is σ = 530366760. Its totient is φ = 272912640.

The previous prime is 388674367. The next prime is 388674421. The reversal of 388674385 is 583476883.

It can be written as a sum of positive squares in 4 ways, for example, as 1411344 + 387263041 = 1188^2 + 19679^2 .

It is not a de Polignac number, because 388674385 - 2²³ = 380285777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6469 + ... + 28621.

It is an arithmetic number, because the mean of its divisors is an integer number (22098615).

Almost surely, 2^388674385 is an apocalyptic number.

It is an amenable number.

388674385 is a deficient number, since it is larger than the sum of its proper divisors (141692375).

388674385 is a wasteful number, since it uses less digits than its factorization.

388674385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22209 (or 22198 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The square root of 388674385 is about 19714.8265272612. The cubic root of 388674385 is about 729.7856285533.

The spelling of 388674385 in words is "three hundred eighty-eight million, six hundred seventy-four thousand, three hundred eighty-five".