385507207 has 12 divisors (see below), whose sum is σ = 415539936. Its totient is φ = 357431040.

The previous prime is 385507201. The next prime is 385507217. The reversal of 385507207 is 702705583.

It is a de Polignac number, because none of the positive numbers 2^k-385507207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385507201) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5607 + ... + 28327.

It is an arithmetic number, because the mean of its divisors is an integer number (34628328).

Almost surely, 2^385507207 is an apocalyptic number.

385507207 is a deficient number, since it is larger than the sum of its proper divisors (30032729).

385507207 is a wasteful number, since it uses less digits than its factorization.

385507207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22806 (or 22787 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 385507207 is about 19634.3374474414. The cubic root of 385507207 is about 727.7979598484.

The spelling of 385507207 in words is "three hundred eighty-five million, five hundred seven thousand, two hundred seven".