385149885 has 16 divisors (see below), whose sum is σ = 624042240. Its totient is φ = 202812480.

The previous prime is 385149883. The next prime is 385149911. The reversal of 385149885 is 588941583.

It is not a de Polignac number, because 385149885 - 2¹ = 385149883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385149883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161326 + ... + 163695.

It is an arithmetic number, because the mean of its divisors is an integer number (39002640).

Almost surely, 2^385149885 is an apocalyptic number.

It is an amenable number.

385149885 is a deficient number, since it is larger than the sum of its proper divisors (238892355).

385149885 is a wasteful number, since it uses less digits than its factorization.

385149885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325108.

The product of its digits is 1382400, while the sum is 51.

The square root of 385149885 is about 19625.2359221488. The cubic root of 385149885 is about 727.5730279426.

It can be divided in two parts, 3851498 and 85, that added together give a palindrome (3851583).

The spelling of 385149885 in words is "three hundred eighty-five million, one hundred forty-nine thousand, eight hundred eighty-five".