40203840202 has 4 divisors (see below), whose sum is σ = 60305760306. Its totient is φ = 20101920100.

The previous prime is 40203840199. The next prime is 40203840221. The reversal of 40203840202 is 20204830204.

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

It can be written as a sum of positive squares in only one way, i.e., 35543183841 + 4660656361 = 188529^2 + 68269^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050960049 + ... + 10050960052.

Almost surely, 2^40203840202 is an apocalyptic number.

40203840202 is a deficient number, since it is larger than the sum of its proper divisors (20101920104).

40203840202 is a wasteful number, since it uses less digits than its factorization.

40203840202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20101920103.

The product of its (nonzero) digits is 3072, while the sum is 25.

The spelling of 40203840202 in words is "forty billion, two hundred three million, eight hundred forty thousand, two hundred two".