385581632 has 28 divisors (see below), whose sum is σ = 769168896. Its totient is φ = 191775360.

The previous prime is 385581631. The next prime is 385581643. The reversal of 385581632 is 236185583.

It is a self number, because there is not a number n which added to its sum of digits gives 385581632.

It is not an unprimeable number, because it can be changed into a prime (385581631) 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 3 ways as a sum of consecutive naturals, for example, 3548 + ... + 27995.

Almost surely, 2^385581632 is an apocalyptic number.

385581632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

385581632 is a deficient number, since it is larger than the sum of its proper divisors (383587264).

385581632 is a wasteful number, since it uses less digits than its factorization.

385581632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31746 (or 31736 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 385581632 is about 19636.2326325596. The cubic root of 385581632 is about 727.8447924167.

The spelling of 385581632 in words is "three hundred eighty-five million, five hundred eighty-one thousand, six hundred thirty-two".