40808003 has 16 divisors (see below), whose sum is σ = 44359680. Its totient is φ = 37436256.

The previous prime is 40807979. The next prime is 40808063. The reversal of 40808003 is 30080804.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40808003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40808003.

It is not an unprimeable number, because it can be changed into a prime (40808063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66926 + ... + 67532.

It is an arithmetic number, because the mean of its divisors is an integer number (2772480).

Almost surely, 2^40808003 is an apocalyptic number.

40808003 is a deficient number, since it is larger than the sum of its proper divisors (3551677).

40808003 is a wasteful number, since it uses less digits than its factorization.

40808003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 40808003 is about 6388.1141974764. The cubic root of 40808003 is about 344.2826317731.

Adding to 40808003 its reverse (30080804), we get a palindrome (70888807).

The spelling of 40808003 in words is "forty million, eight hundred eight thousand, three".