2044661 has 2 divisors, whose sum is σ = 2044662. Its totient is φ = 2044660.

The previous prime is 2044649. The next prime is 2044673. The reversal of 2044661 is 1664402.

It is a happy number.

2044661 is an esthetic number in base 13, because in such base its adjacent digits differ by 1.

It is a balanced prime because it is at equal distance from previous prime (2044649) and next prime (2044673).

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 42436 = 1415^2 + 206^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044661 - 2¹⁰ = 2043637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022330 + 1022331.

It is an arithmetic number, because the mean of its divisors is an integer number (1022331).

2^2044661 is an apocalyptic number.

It is an amenable number.

2044661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044661 is an equidigital number, since it uses as much as digits as its factorization.

2044661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2044661 is about 1429.9164311246. The cubic root of 2044661 is about 126.9230318759.

The spelling of 2044661 in words is "two million, forty-four thousand, six hundred sixty-one".