385426986 has 32 divisors (see below), whose sum is σ = 883785600. Its totient is φ = 109770816.

The previous prime is 385426973. The next prime is 385426997. The reversal of 385426986 is 689624583.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161 + ... + 27788.

It is an arithmetic number, because the mean of its divisors is an integer number (27618300).

Almost surely, 2^385426986 is an apocalyptic number.

385426986 is an abundant number, since it is smaller than the sum of its proper divisors (498358614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

385426986 is a wasteful number, since it uses less digits than its factorization.

385426986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29278.

The product of its digits is 2488320, while the sum is 51.

The square root of 385426986 is about 19632.2944660068. The cubic root of 385426986 is about 727.7474733470.

The spelling of 385426986 in words is "three hundred eighty-five million, four hundred twenty-six thousand, nine hundred eighty-six".