2042903 has 4 divisors (see below), whose sum is σ = 2052288. Its totient is φ = 2033520.

The previous prime is 2042891. The next prime is 2042923. The reversal of 2042903 is 3092402.

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

It is a cyclic number.

It is not a de Polignac number, because 2042903 - 2⁸ = 2042647 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4358 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (513072).

2^2042903 is an apocalyptic number.

2042903 is a deficient number, since it is larger than the sum of its proper divisors (9385).

2042903 is an equidigital number, since it uses as much as digits as its factorization.

2042903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9384.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2042903 is about 1429.3015776945. The cubic root of 2042903 is about 126.8866452948.

The spelling of 2042903 in words is "two million, forty-two thousand, nine hundred three".