40503003 has 16 divisors (see below), whose sum is σ = 57150720. Its totient is φ = 25443936.

The previous prime is 40502981. The next prime is 40503007. The reversal of 40503003 is 30030504.

40503003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40503003 - 2¹⁴ = 40486619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40503007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9426 + ... + 13032.

It is an arithmetic number, because the mean of its divisors is an integer number (3571920).

Almost surely, 2^40503003 is an apocalyptic number.

40503003 is a deficient number, since it is larger than the sum of its proper divisors (16647717).

40503003 is a wasteful number, since it uses less digits than its factorization.

40503003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 40503003 is about 6364.1969642682. The cubic root of 40503003 is about 343.4227604003.

Adding to 40503003 its reverse (30030504), we get a palindrome (70533507).

The spelling of 40503003 in words is "forty million, five hundred three thousand, three".