40040203 has 6 divisors (see below), whose sum is σ = 46577436. Its totient is φ = 34320132.

The previous prime is 40040197. The next prime is 40040227. The reversal of 40040203 is 30204004.

It is not a de Polignac number, because 40040203 - 2¹⁷ = 39909131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40040293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 408525 + ... + 408622.

It is an arithmetic number, because the mean of its divisors is an integer number (7762906).

Almost surely, 2^40040203 is an apocalyptic number.

40040203 is a deficient number, since it is larger than the sum of its proper divisors (6537233).

40040203 is an equidigital number, since it uses as much as digits as its factorization.

40040203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817161 (or 817154 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 40040203 is about 6327.7328483431. The cubic root of 40040203 is about 342.1097279089.

Adding to 40040203 its reverse (30204004), we get a palindrome (70244207).

The spelling of 40040203 in words is "forty million, forty thousand, two hundred three".