385385546 has 64 divisors (see below), whose sum is σ = 757693440. Its totient is φ = 143159040.

The previous prime is 385385543. The next prime is 385385549. The reversal of 385385546 is 645583583.

It is an interprime number because it is at equal distance from previous prime (385385543) and next prime (385385549).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 385385546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385385543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893951 + ... + 894381.

It is an arithmetic number, because the mean of its divisors is an integer number (11838960).

Almost surely, 2^385385546 is an apocalyptic number.

385385546 is a deficient number, since it is larger than the sum of its proper divisors (372307894).

385385546 is a wasteful number, since it uses less digits than its factorization.

385385546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 470 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 47.

The square root of 385385546 is about 19631.2390337442. The cubic root of 385385546 is about 727.7213906411.

The spelling of 385385546 in words is "three hundred eighty-five million, three hundred eighty-five thousand, five hundred forty-six".