40344800338 has 4 divisors (see below), whose sum is σ = 60517200510. Its totient is φ = 20172400168.

The previous prime is 40344800263. The next prime is 40344800339. The reversal of 40344800338 is 83300844304.

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., 26890424289 + 13454376049 = 163983^2 + 115993^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40344800297 and 40344800306.

It is not an unprimeable number, because it can be changed into a prime (40344800339) by changing a digit.

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, 10086200083 + ... + 10086200086.

Almost surely, 2^40344800338 is an apocalyptic number.

40344800338 is a deficient number, since it is larger than the sum of its proper divisors (20172400172).

40344800338 is a wasteful number, since it uses less digits than its factorization.

40344800338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20172400171.

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 40344800338 in words is "forty billion, three hundred forty-four million, eight hundred thousand, three hundred thirty-eight".