2051646 has 16 divisors (see below), whose sum is σ = 4281984. Its totient is φ = 654104.

The previous prime is 2051641. The next prime is 2051653. The reversal of 2051646 is 6461502.

2051646 = 221² + 222² + ... + 256².

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7296 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (267624).

2^2051646 is an apocalyptic number.

2051646 is an abundant number, since it is smaller than the sum of its proper divisors (2230338).

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

2051646 is a wasteful number, since it uses less digits than its factorization.

2051646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14895.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2051646 is about 1432.3567991251. The cubic root of 2051646 is about 127.0673996924.

The spelling of 2051646 in words is "two million, fifty-one thousand, six hundred forty-six".