385240255 has 8 divisors (see below), whose sum is σ = 477201024. Its totient is φ = 298250400.

The previous prime is 385240241. The next prime is 385240277. The reversal of 385240255 is 552042583.

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

It is not a de Polignac number, because 385240255 - 2⁷ = 385240127 is a prime.

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 385240255.

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 7 ways as a sum of consecutive naturals, for example, 1242556 + ... + 1242865.

It is an arithmetic number, because the mean of its divisors is an integer number (59650128).

Almost surely, 2^385240255 is an apocalyptic number.

385240255 is a deficient number, since it is larger than the sum of its proper divisors (91960769).

385240255 is a wasteful number, since it uses less digits than its factorization.

385240255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485457.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 385240255 is about 19627.5381798126. The cubic root of 385240255 is about 727.6299284163.

The spelling of 385240255 in words is "three hundred eighty-five million, two hundred forty thousand, two hundred fifty-five".