385645641 has 16 divisors (see below), whose sum is σ = 548677440. Its totient is φ = 240226560.

The previous prime is 385645621. The next prime is 385645643. The reversal of 385645641 is 146546583.

It is not a de Polignac number, because 385645641 - 2⁹ = 385645129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385645593 and 385645602.

It is not an unprimeable number, because it can be changed into a prime (385645643) 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, 42180 + ... + 50501.

It is an arithmetic number, because the mean of its divisors is an integer number (34292340).

Almost surely, 2^385645641 is an apocalyptic number.

It is an amenable number.

385645641 is a deficient number, since it is larger than the sum of its proper divisors (163031799).

385645641 is a wasteful number, since it uses less digits than its factorization.

385645641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92776.

The product of its digits is 345600, while the sum is 42.

The square root of 385645641 is about 19637.8624345930. The cubic root of 385645641 is about 727.8850658078.

The spelling of 385645641 in words is "three hundred eighty-five million, six hundred forty-five thousand, six hundred forty-one".