2001776 has 40 divisors (see below), whose sum is σ = 4520544. Its totient is φ = 840960.

The previous prime is 2001751. The next prime is 2001787. The reversal of 2001776 is 6771002.

It is a happy number.

It is a zygodrome in base 13.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6686 + ... + 6978.

2^2001776 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 2001776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2260272).

2001776 is an abundant number, since it is smaller than the sum of its proper divisors (2518768).

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

2001776 is a wasteful number, since it uses less digits than its factorization.

2001776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 2001776 is about 1414.8413338604. The cubic root of 2001776 is about 126.0293876191.

Adding to 2001776 its reverse (6771002), we get a palindrome (8772778).

The spelling of 2001776 in words is "two million, one thousand, seven hundred seventy-six".