2026656 has 72 divisors (see below), whose sum is σ = 5975424. Its totient is φ = 650880.

The previous prime is 2026639. The next prime is 2026663. The reversal of 2026656 is 6566202.

2026656 is a `hidden beast` number, since 2 + 0 + 2 + 6 + 656 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8815 + ... + 9041.

It is an arithmetic number, because the mean of its divisors is an integer number (82992).

2^2026656 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 2026656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2987712).

2026656 is an abundant number, since it is smaller than the sum of its proper divisors (3948768).

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

2026656 is a wasteful number, since it uses less digits than its factorization.

2026656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2026656 is about 1423.6066872560. The cubic root of 2026656 is about 126.5493774232.

The spelling of 2026656 in words is "two million, twenty-six thousand, six hundred fifty-six".