41981138 has 8 divisors (see below), whose sum is σ = 63094140. Its totient is φ = 20949760.

The previous prime is 41981123. The next prime is 41981179. The reversal of 41981138 is 83118914.

It can be written as a sum of positive squares in 2 ways, for example, as 40360609 + 1620529 = 6353^2 + 1273^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 41981098 and 41981107.

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, 19103 + ... + 21186.

Almost surely, 2^41981138 is an apocalyptic number.

41981138 is a deficient number, since it is larger than the sum of its proper divisors (21113002).

41981138 is a wasteful number, since it uses less digits than its factorization.

41981138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40812.

The product of its digits is 6912, while the sum is 35.

The square root of 41981138 is about 6479.2853000929. The cubic root of 41981138 is about 347.5506211299.

The spelling of 41981138 in words is "forty-one million, nine hundred eighty-one thousand, one hundred thirty-eight".