385818146 has 64 divisors (see below), whose sum is σ = 724377600. Its totient is φ = 150486336.

The previous prime is 385818127. The next prime is 385818149. The reversal of 385818146 is 641818583.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 385818097 and 385818106.

It is not an unprimeable number, because it can be changed into a prime (385818149) 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 31 ways as a sum of consecutive naturals, for example, 737441 + ... + 737963.

It is an arithmetic number, because the mean of its divisors is an integer number (11318400).

Almost surely, 2^385818146 is an apocalyptic number.

385818146 is a deficient number, since it is larger than the sum of its proper divisors (338559454).

385818146 is a wasteful number, since it uses less digits than its factorization.

385818146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663.

The product of its digits is 184320, while the sum is 44.

The square root of 385818146 is about 19642.2540967171. The cubic root of 385818146 is about 727.9935808817.

The spelling of 385818146 in words is "three hundred eighty-five million, eight hundred eighteen thousand, one hundred forty-six".