40203043 has 4 divisors (see below), whose sum is σ = 40272120. Its totient is φ = 40133968.

The previous prime is 40203041. The next prime is 40203049. The reversal of 40203043 is 34030204.

40203043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40203043 - 2¹ = 40203041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40203041) 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 3 ways as a sum of consecutive naturals, for example, 33658 + ... + 34831.

It is an arithmetic number, because the mean of its divisors is an integer number (10068030).

Almost surely, 2^40203043 is an apocalyptic number.

40203043 is a deficient number, since it is larger than the sum of its proper divisors (69077).

40203043 is an equidigital number, since it uses as much as digits as its factorization.

40203043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69076.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40203043 is about 6340.5869602112. The cubic root of 40203043 is about 342.5728773828.

Adding to 40203043 its reverse (34030204), we get a palindrome (74233247).

The spelling of 40203043 in words is "forty million, two hundred three thousand, forty-three".