385890886 has 4 divisors (see below), whose sum is σ = 578836332. Its totient is φ = 192945442.

The previous prime is 385890881. The next prime is 385890913. The reversal of 385890886 is 688098583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 688098583 = 37 ⋅18597259.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385890881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96472720 + ... + 96472723.

It is an arithmetic number, because the mean of its divisors is an integer number (144709083).

Almost surely, 2^385890886 is an apocalyptic number.

385890886 is a deficient number, since it is larger than the sum of its proper divisors (192945446).

385890886 is a wasteful number, since it uses less digits than its factorization.

385890886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192945445.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The square root of 385890886 is about 19644.1056299339. The cubic root of 385890886 is about 728.0393286224.

The spelling of 385890886 in words is "three hundred eighty-five million, eight hundred ninety thousand, eight hundred eighty-six".