2040003 has 12 divisors (see below), whose sum is σ = 3367728. Its totient is φ = 1165680.

The previous prime is 2039993. The next prime is 2040019. The reversal of 2040003 is 3000402.

It is not a de Polignac number, because 2040003 - 2⁵ = 2039971 is a prime.

It is a super-2 number, since 2×2040003² = 8323224480018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2040053) 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, 16128 + ... + 16253.

It is an arithmetic number, because the mean of its divisors is an integer number (280644).

2^2040003 is an apocalyptic number.

2040003 is a deficient number, since it is larger than the sum of its proper divisors (1327725).

2040003 is a wasteful number, since it uses less digits than its factorization.

2040003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32394 (or 32391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 2040003 is about 1428.2867359182. The cubic root of 2040003 is about 126.8265762775.

Adding to 2040003 its reverse (3000402), we get a palindrome (5040405).

The spelling of 2040003 in words is "two million, forty thousand, three".