40119881 has 4 divisors (see below), whose sum is σ = 42479892. Its totient is φ = 37759872.

The previous prime is 40119869. The next prime is 40119907. The reversal of 40119881 is 18891104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13690000 + 26429881 = 3700^2 + 5141^2 .

It is a cyclic number.

It is not a de Polignac number, because 40119881 - 2¹⁰ = 40118857 is a prime.

It is a super-2 number, since 2×40119881² = 3219209702908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40119841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179980 + ... + 1180013.

It is an arithmetic number, because the mean of its divisors is an integer number (10619973).

Almost surely, 2^40119881 is an apocalyptic number.

It is an amenable number.

40119881 is a deficient number, since it is larger than the sum of its proper divisors (2360011).

40119881 is a wasteful number, since it uses less digits than its factorization.

40119881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360010.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 40119881 is about 6334.0256551422. The cubic root of 40119881 is about 342.3365046294.

The spelling of 40119881 in words is "forty million, one hundred nineteen thousand, eight hundred eighty-one".