385745757 has 8 divisors (see below), whose sum is σ = 528228576. Its totient is φ = 250213392.

The previous prime is 385745749. The next prime is 385745839. The reversal of 385745757 is 757547583.

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

It is not a de Polignac number, because 385745757 - 2³ = 385745749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385745747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1737483 + ... + 1737704.

It is an arithmetic number, because the mean of its divisors is an integer number (66028572).

Almost surely, 2^385745757 is an apocalyptic number.

385745757 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

385745757 is a deficient number, since it is larger than the sum of its proper divisors (142482819).

385745757 is a wasteful number, since it uses less digits than its factorization.

385745757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475227.

The product of its digits is 4116000, while the sum is 51.

The square root of 385745757 is about 19640.4113246133. The cubic root of 385745757 is about 727.9480481836.

The spelling of 385745757 in words is "three hundred eighty-five million, seven hundred forty-five thousand, seven hundred fifty-seven".