2121044 has 6 divisors (see below), whose sum is σ = 3711834. Its totient is φ = 1060520.

The previous prime is 2121043. The next prime is 2121121. The reversal of 2121044 is 4401212.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 976144 = 1070^2 + 988^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265127 + ... + 265134.

It is an arithmetic number, because the mean of its divisors is an integer number (618639).

2^2121044 is an apocalyptic number.

It is an amenable number.

2121044 is a deficient number, since it is larger than the sum of its proper divisors (1590790).

2121044 is a wasteful number, since it uses less digits than its factorization.

2121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530265 (or 530263 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2121044 is about 1456.3804448014. The cubic root of 2121044 is about 128.4842496605.

Adding to 2121044 its reverse (4401212), we get a palindrome (6522256).

The spelling of 2121044 in words is "two million, one hundred twenty-one thousand, forty-four".