2043261 has 12 divisors (see below), whose sum is σ = 3219840. Its totient is φ = 1238280.

The previous prime is 2043259. The next prime is 2043269. The reversal of 2043261 is 1623402.

It is a happy number.

It is not a de Polignac number, because 2043261 - 2¹ = 2043259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043269) 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, 10221 + ... + 10418.

It is an arithmetic number, because the mean of its divisors is an integer number (268320).

2^2043261 is an apocalyptic number.

It is an amenable number.

2043261 is a deficient number, since it is larger than the sum of its proper divisors (1176579).

2043261 is a wasteful number, since it uses less digits than its factorization.

2043261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20656 (or 20653 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2043261 is about 1429.4268081997. The cubic root of 2043261 is about 126.8940567685.

Adding to 2043261 its reverse (1623402), we get a palindrome (3666663).

It can be divided in two parts, 2043 and 261, that added together give a square (2304 = 48²).

The spelling of 2043261 in words is "two million, forty-three thousand, two hundred sixty-one".