40304503 has 2 divisors, whose sum is σ = 40304504. Its totient is φ = 40304502.

The previous prime is 40304489. The next prime is 40304527. The reversal of 40304503 is 30540304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40304503 - 2⁵ = 40304471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40304903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20152251 + 20152252.

It is an arithmetic number, because the mean of its divisors is an integer number (20152252).

Almost surely, 2^40304503 is an apocalyptic number.

40304503 is a deficient number, since it is larger than the sum of its proper divisors (1).

40304503 is an equidigital number, since it uses as much as digits as its factorization.

40304503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 40304503 is about 6348.5827552297. The cubic root of 40304503 is about 342.8608178260.

Adding to 40304503 its reverse (30540304), we get a palindrome (70844807).

The spelling of 40304503 in words is "forty million, three hundred four thousand, five hundred three".