1568256 has 40 divisors (see below), whose sum is σ = 4182024. Its totient is φ = 522240.

The previous prime is 1568251. The next prime is 1568257. The reversal of 1568256 is 6528651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1568251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026 + ... + 2046.

2^1568256 is an apocalyptic number.

1568256 is a gapful number since it is divisible by the number (16) 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 1568256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2091012).

1568256 is an abundant number, since it is smaller than the sum of its proper divisors (2613768).

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

1568256 is an equidigital number, since it uses as much as digits as its factorization.

1568256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1026 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 1568256 is about 1252.3002834784. The cubic root of 1568256 is about 116.1820368151.

The spelling of 1568256 in words is "one million, five hundred sixty-eight thousand, two hundred fifty-six".