385019256720 has 160 divisors (see below), whose sum is σ = 1364392673280. Its totient is φ = 87983470080.

The previous prime is 385019256719. The next prime is 385019256737. The reversal of 385019256720 is 27652910583.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 385019256720.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7687921 + ... + 7737839.

It is an arithmetic number, because the mean of its divisors is an integer number (8527454208).

Almost surely, 2^385019256720 is an apocalyptic number.

385019256720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385019256720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682196336640).

385019256720 is an abundant number, since it is smaller than the sum of its proper divisors (979373416560).

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

385019256720 is a wasteful number, since it uses less digits than its factorization.

385019256720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54533 (or 54527 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 385019256720 in words is "three hundred eighty-five billion, nineteen million, two hundred fifty-six thousand, seven hundred twenty".