2051766 has 24 divisors (see below), whose sum is σ = 4590144. Its totient is φ = 661680.

The previous prime is 2051759. The next prime is 2051767. The reversal of 2051766 is 6671502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1281 + ... + 2396.

It is an arithmetic number, because the mean of its divisors is an integer number (191256).

2^2051766 is an apocalyptic number.

2051766 is an abundant number, since it is smaller than the sum of its proper divisors (2538378).

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

2051766 is a wasteful number, since it uses less digits than its factorization.

2051766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 3713 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2051766 is about 1432.3986875169. The cubic root of 2051766 is about 127.0698770189.

The spelling of 2051766 in words is "two million, fifty-one thousand, seven hundred sixty-six".