385828457740 has 144 divisors (see below), whose sum is σ = 904182582240. Its totient is φ = 138175488000.

The previous prime is 385828457737. The next prime is 385828457743. The reversal of 385828457740 is 47754828583.

It is an interprime number because it is at equal distance from previous prime (385828457737) and next prime (385828457743).

It is not an unprimeable number, because it can be changed into a prime (385828457743) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47168971 + ... + 47177149.

It is an arithmetic number, because the mean of its divisors is an integer number (6279045710).

Almost surely, 2^385828457740 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 385828457740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452091291120).

385828457740 is an abundant number, since it is smaller than the sum of its proper divisors (518354124500).

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

385828457740 is a wasteful number, since it uses less digits than its factorization.

385828457740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8504 (or 8491 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 61.

The spelling of 385828457740 in words is "three hundred eighty-five billion, eight hundred twenty-eight million, four hundred fifty-seven thousand, seven hundred forty".