385641528 has 48 divisors (see below), whose sum is σ = 991665480. Its totient is φ = 124883136.

The previous prime is 385641521. The next prime is 385641547. The reversal of 385641528 is 825146583.

It is a self number, because there is not a number n which added to its sum of digits gives 385641528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385641521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584863 + ... + 585521.

Almost surely, 2^385641528 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 385641528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495832740).

385641528 is an abundant number, since it is smaller than the sum of its proper divisors (606023952).

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

385641528 is an equidigital number, since it uses as much as digits as its factorization.

385641528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 701 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 385641528 is about 19637.7577131403. The cubic root of 385641528 is about 727.8824781110.

The spelling of 385641528 in words is "three hundred eighty-five million, six hundred forty-one thousand, five hundred twenty-eight".