2043901 has 4 divisors (see below), whose sum is σ = 2047612. Its totient is φ = 2040192.

The previous prime is 2043869. The next prime is 2043907. The reversal of 2043901 is 1093402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1232100 + 811801 = 1110^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043901 - 2⁵ = 2043869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2043907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 846 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (511903).

2^2043901 is an apocalyptic number.

It is an amenable number.

2043901 is a deficient number, since it is larger than the sum of its proper divisors (3711).

2043901 is an equidigital number, since it uses as much as digits as its factorization.

2043901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2043901 is about 1429.6506566291. The cubic root of 2043901 is about 126.9073041736.

The spelling of 2043901 in words is "two million, forty-three thousand, nine hundred one".