40506203 has 4 divisors (see below), whose sum is σ = 40774608. Its totient is φ = 40237800.

The previous prime is 40506199. The next prime is 40506209. The reversal of 40506203 is 30260504.

40506203 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 40506203 - 2² = 40506199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40506209) 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, 133976 + ... + 134277.

It is an arithmetic number, because the mean of its divisors is an integer number (10193652).

Almost surely, 2^40506203 is an apocalyptic number.

40506203 is a deficient number, since it is larger than the sum of its proper divisors (268405).

40506203 is a wasteful number, since it uses less digits than its factorization.

40506203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268404.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40506203 is about 6364.4483657266. The cubic root of 40506203 is about 343.4318043708.

Adding to 40506203 its reverse (30260504), we get a palindrome (70766707).

The spelling of 40506203 in words is "forty million, five hundred six thousand, two hundred three".