40020203 has 4 divisors (see below), whose sum is σ = 41400240. Its totient is φ = 38640168.

The previous prime is 40020191. The next prime is 40020221. The reversal of 40020203 is 30202004.

40020203 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 40020203 - 2⁴ = 40020187 is a prime.

It is a super-2 number, since 2×40020203² = 3203233296322418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40020103) 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, 689975 + ... + 690032.

It is an arithmetic number, because the mean of its divisors is an integer number (10350060).

Almost surely, 2^40020203 is an apocalyptic number.

40020203 is a deficient number, since it is larger than the sum of its proper divisors (1380037).

40020203 is a wasteful number, since it uses less digits than its factorization.

40020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380036.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 40020203 is about 6326.1523061020. The cubic root of 40020203 is about 342.0527573845.

Adding to 40020203 its reverse (30202004), we get a palindrome (70222207).

The spelling of 40020203 in words is "forty million, twenty thousand, two hundred three".