1600256 has 72 divisors (see below), whose sum is σ = 3924480. Its totient is φ = 635904.

The previous prime is 1600253. The next prime is 1600259. The reversal of 1600256 is 6520061.

It is an interprime number because it is at equal distance from previous prime (1600253) and next prime (1600259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34025 + ... + 34071.

2^1600256 is an apocalyptic number.

1600256 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 1600256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962240).

1600256 is an abundant number, since it is smaller than the sum of its proper divisors (2324224).

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

1600256 is an equidigital number, since it uses as much as digits as its factorization.

1600256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1600256 is about 1265.0122529051. The cubic root of 1600256 is about 116.9669471004.

It can be divided in two parts, 1600 and 256, that multiplied together give a square (409600 = 640²).

The spelling of 1600256 in words is "one million, six hundred thousand, two hundred fifty-six".