387313256 has 48 divisors (see below), whose sum is σ = 824046720. Its totient is φ = 170359200.

The previous prime is 387313243. The next prime is 387313273. The reversal of 387313256 is 652313783.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23555 + ... + 36461.

It is an arithmetic number, because the mean of its divisors is an integer number (17167640).

Almost surely, 2^387313256 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 387313256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412023360).

387313256 is an abundant number, since it is smaller than the sum of its proper divisors (436733464).

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

387313256 is a wasteful number, since it uses less digits than its factorization.

387313256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12966 (or 12951 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 387313256 is about 19680.2758110754. The cubic root of 387313256 is about 728.9327345243.

The spelling of 387313256 in words is "three hundred eighty-seven million, three hundred thirteen thousand, two hundred fifty-six".