385805090 has 32 divisors (see below), whose sum is σ = 759692736. Its totient is φ = 139901760.

The previous prime is 385805083. The next prime is 385805099. The reversal of 385805090 is 90508583.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (385805099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36329 + ... + 45731.

It is an arithmetic number, because the mean of its divisors is an integer number (23740398).

Almost surely, 2^385805090 is an apocalyptic number.

385805090 is a deficient number, since it is larger than the sum of its proper divisors (373887646).

385805090 is a wasteful number, since it uses less digits than its factorization.

385805090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9794.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 385805090 is about 19641.9217491568. The cubic root of 385805090 is about 727.9853690756.

The spelling of 385805090 in words is "three hundred eighty-five million, eight hundred five thousand, ninety".