385885442020 has 48 divisors (see below), whose sum is σ = 872796915648. Its totient is φ = 142464101760.

The previous prime is 385885441967. The next prime is 385885442023. The reversal of 385885442020 is 20244588583.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (385885442023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2260507 + ... + 2425213.

It is an arithmetic number, because the mean of its divisors is an integer number (18183269076).

Almost surely, 2^385885442020 is an apocalyptic number.

It is an amenable number.

385885442020 is an abundant number, since it is smaller than the sum of its proper divisors (486911473628).

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

385885442020 is a wasteful number, since it uses less digits than its factorization.

385885442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173740 (or 173738 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 49.

The spelling of 385885442020 in words is "three hundred eighty-five billion, eight hundred eighty-five million, four hundred forty-two thousand, twenty".