40111841 has 12 divisors (see below), whose sum is σ = 50903280. Its totient is φ = 31255560.

The previous prime is 40111837. The next prime is 40111853. The reversal of 40111841 is 14811104.

It is a happy number.

It is not a de Polignac number, because 40111841 - 2² = 40111837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40111801) 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 11 ways as a sum of consecutive naturals, for example, 36671 + ... + 37748.

It is an arithmetic number, because the mean of its divisors is an integer number (4241940).

Almost surely, 2^40111841 is an apocalyptic number.

It is an amenable number.

40111841 is a deficient number, since it is larger than the sum of its proper divisors (10791439).

40111841 is a wasteful number, since it uses less digits than its factorization.

40111841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74444 (or 74437 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 40111841 is about 6333.3909558782. The cubic root of 40111841 is about 342.3136350918.

Adding to 40111841 its reverse (14811104), we get a palindrome (54922945).

The spelling of 40111841 in words is "forty million, one hundred eleven thousand, eight hundred forty-one".