385532864 has 56 divisors (see below), whose sum is σ = 793504128. Its totient is φ = 185656320.

The previous prime is 385532863. The next prime is 385532893. The reversal of 385532864 is 468235583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385532863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628622 + ... + 629234.

Almost surely, 2^385532864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385532864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396752064).

385532864 is an abundant number, since it is smaller than the sum of its proper divisors (407971264).

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

385532864 is a wasteful number, since it uses less digits than its factorization.

385532864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973 (or 963 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The square root of 385532864 is about 19634.9908072298. The cubic root of 385532864 is about 727.8141054160.

The spelling of 385532864 in words is "three hundred eighty-five million, five hundred thirty-two thousand, eight hundred sixty-four".