1616256 has 96 divisors (see below), whose sum is σ = 4932720. Its totient is φ = 506880.

The previous prime is 1616231. The next prime is 1616269. The reversal of 1616256 is 6526161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1616256² = 5224566915072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26466 + ... + 26526.

2^1616256 is an apocalyptic number.

1616256 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 1616256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2466360).

1616256 is an abundant number, since it is smaller than the sum of its proper divisors (3316464).

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

1616256 is a wasteful number, since it uses less digits than its factorization.

1616256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 89 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1616256 is about 1271.3205732623. The cubic root of 1616256 is about 117.3554825036.

The spelling of 1616256 in words is "one million, six hundred sixteen thousand, two hundred fifty-six".