40087115938 has 8 divisors (see below), whose sum is σ = 60726027420. Its totient is φ = 19845106800.

The previous prime is 40087115899. The next prime is 40087116011. The reversal of 40087115938 is 83951178004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40078838809 + 8277129 = 200197^2 + 2877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99225333 + ... + 99225736.

Almost surely, 2^40087115938 is an apocalyptic number.

40087115938 is a deficient number, since it is larger than the sum of its proper divisors (20638911482).

40087115938 is a wasteful number, since it uses less digits than its factorization.

40087115938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198451172.

The product of its (nonzero) digits is 241920, while the sum is 46.

It can be divided in two parts, 40087 and 115938, that added together give a square (156025 = 395²).

The spelling of 40087115938 in words is "forty billion, eighty-seven million, one hundred fifteen thousand, nine hundred thirty-eight".