388349261256 has 96 divisors (see below), whose sum is σ = 1079497127520. Its totient is φ = 115460966400.

The previous prime is 388349261239. The next prime is 388349261299. The reversal of 388349261256 is 652162943883.

It is a junction number, because it is equal to n+sod(n) for n = 388349261196 and 388349261205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479736 + ... + 1003416.

It is an arithmetic number, because the mean of its divisors is an integer number (11244761745).

Almost surely, 2^388349261256 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 388349261256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539748563760).

388349261256 is an abundant number, since it is smaller than the sum of its proper divisors (691147866264).

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

388349261256 is a wasteful number, since it uses less digits than its factorization.

388349261256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523807 (or 523750 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 57.

The spelling of 388349261256 in words is "three hundred eighty-eight billion, three hundred forty-nine million, two hundred sixty-one thousand, two hundred fifty-six".