385687056 has 80 divisors (see below), whose sum is σ = 1017434880. Its totient is φ = 125873280.

The previous prime is 385687039. The next prime is 385687063. The reversal of 385687056 is 650786583.

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

It is a junction number, because it is equal to n+sod(n) for n = 385686996 and 385687014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521535 + ... + 522273.

It is an arithmetic number, because the mean of its divisors is an integer number (12717936).

Almost surely, 2^385687056 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 385687056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508717440).

385687056 is an abundant number, since it is smaller than the sum of its proper divisors (631747824).

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

385687056 is a wasteful number, since it uses less digits than its factorization.

385687056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 385687056 is about 19638.9168744104. The cubic root of 385687056 is about 727.9111210579.

The spelling of 385687056 in words is "three hundred eighty-five million, six hundred eighty-seven thousand, fifty-six".