385575949 has 16 divisors (see below), whose sum is σ = 443741760. Its totient is φ = 331344000.

The previous prime is 385575947. The next prime is 385575959. The reversal of 385575949 is 949575583.

It is a cyclic number.

It is not a de Polignac number, because 385575949 - 2¹ = 385575947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 385575949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385575941) 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 15 ways as a sum of consecutive naturals, for example, 107119 + ... + 110659.

It is an arithmetic number, because the mean of its divisors is an integer number (27733860).

Almost surely, 2^385575949 is an apocalyptic number.

It is an amenable number.

385575949 is a deficient number, since it is larger than the sum of its proper divisors (58165811).

385575949 is a wasteful number, since it uses less digits than its factorization.

385575949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092.

The product of its digits is 6804000, while the sum is 55.

The square root of 385575949 is about 19636.0879250425. The cubic root of 385575949 is about 727.8412165528.

The spelling of 385575949 in words is "three hundred eighty-five million, five hundred seventy-five thousand, nine hundred forty-nine".