385663545 has 32 divisors (see below), whose sum is σ = 688550400. Its totient is φ = 204809472.

The previous prime is 385663459. The next prime is 385663549. The reversal of 385663545 is 545366583.

385663545 is a `hidden beast` number, since 3 + 8 + 5 + 6 + 635 + 4 + 5 = 666.

It is not a de Polignac number, because 385663545 - 2¹⁰ = 385662521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 385663545.

It is not an unprimeable number, because it can be changed into a prime (385663549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26289 + ... + 38241.

It is an arithmetic number, because the mean of its divisors is an integer number (21517200).

Almost surely, 2^385663545 is an apocalyptic number.

It is an amenable number.

385663545 is a deficient number, since it is larger than the sum of its proper divisors (302886855).

385663545 is a wasteful number, since it uses less digits than its factorization.

385663545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12206 (or 12200 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The square root of 385663545 is about 19638.3182833969. The cubic root of 385663545 is about 727.8963299072.

The spelling of 385663545 in words is "three hundred eighty-five million, six hundred sixty-three thousand, five hundred forty-five".