2043729 has 6 divisors (see below), whose sum is σ = 2952066. Its totient is φ = 1362480.

The previous prime is 2043721. The next prime is 2043739. The reversal of 2043729 is 9273402.

It can be written as a sum of positive squares in only one way, i.e., 1440000 + 603729 = 1200^2 + 777^2 .

It is not a de Polignac number, because 2043729 - 2³ = 2043721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2043721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113532 + ... + 113549.

It is an arithmetic number, because the mean of its divisors is an integer number (492011).

2^2043729 is an apocalyptic number.

It is an amenable number.

2043729 is a deficient number, since it is larger than the sum of its proper divisors (908337).

2043729 is a wasteful number, since it uses less digits than its factorization.

2043729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227087 (or 227084 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2043729 is about 1429.5905008078. The cubic root of 2043729 is about 126.9037442052.

It can be divided in two parts, 2043 and 729, that added together give a palindrome (2772).

The spelling of 2043729 in words is "two million, forty-three thousand, seven hundred twenty-nine".