40321440202 has 4 divisors (see below), whose sum is σ = 60482160306. Its totient is φ = 20160720100.

The previous prime is 40321440199. The next prime is 40321440301. The reversal of 40321440202 is 20204412304.

It is a happy number.

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., 34946937481 + 5374502721 = 186941^2 + 73311^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10080360049 + ... + 10080360052.

Almost surely, 2^40321440202 is an apocalyptic number.

40321440202 is a deficient number, since it is larger than the sum of its proper divisors (20160720104).

40321440202 is a wasteful number, since it uses less digits than its factorization.

40321440202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20160720103.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40321440202 its reverse (20204412304), we get a palindrome (60525852506).

The spelling of 40321440202 in words is "forty billion, three hundred twenty-one million, four hundred forty thousand, two hundred two".