40146883138 has 8 divisors (see below), whose sum is σ = 60242694588. Its totient is φ = 20065984944.

The previous prime is 40146883109. The next prime is 40146883177. The reversal of 40146883138 is 83138864104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37186108569 + 2960774569 = 192837^2 + 54413^2 .

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

It is a super-2 number, since 2×40146883138² (a number of 22 digits) contains 22 as substring.

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, 3721581 + ... + 3732352.

Almost surely, 2^40146883138 is an apocalyptic number.

40146883138 is a deficient number, since it is larger than the sum of its proper divisors (20095811450).

40146883138 is a wasteful number, since it uses less digits than its factorization.

40146883138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7456628.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 40146883138 in words is "forty billion, one hundred forty-six million, eight hundred eighty-three thousand, one hundred thirty-eight".