385431255 has 48 divisors (see below), whose sum is σ = 744367104. Its totient is φ = 182888640.

The previous prime is 385431209. The next prime is 385431269. The reversal of 385431255 is 552134583.

385431255 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 385431255 - 2¹¹ = 385429207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14982 + ... + 31548.

It is an arithmetic number, because the mean of its divisors is an integer number (15507648).

Almost surely, 2^385431255 is an apocalyptic number.

385431255 is a deficient number, since it is larger than the sum of its proper divisors (358935849).

385431255 is a wasteful number, since it uses less digits than its factorization.

385431255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16636 (or 16633 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 385431255 is about 19632.4031896251. The cubic root of 385431255 is about 727.7501601875.

The spelling of 385431255 in words is "three hundred eighty-five million, four hundred thirty-one thousand, two hundred fifty-five".