40042041 has 16 divisors (see below), whose sum is σ = 57632064. Its totient is φ = 24583104.

The previous prime is 40042039. The next prime is 40042043. The reversal of 40042041 is 14024004.

It is an interprime number because it is at equal distance from previous prime (40042039) and next prime (40042043).

It is not a de Polignac number, because 40042041 - 2¹ = 40042039 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40042041.

It is not an unprimeable number, because it can be changed into a prime (40042043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20395 + ... + 22271.

It is an arithmetic number, because the mean of its divisors is an integer number (3602004).

Almost surely, 2^40042041 is an apocalyptic number.

It is an amenable number.

40042041 is a deficient number, since it is larger than the sum of its proper divisors (17590023).

40042041 is a wasteful number, since it uses less digits than its factorization.

40042041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 40042041 is about 6327.8780803679. The cubic root of 40042041 is about 342.1149625482.

Adding to 40042041 its reverse (14024004), we get a palindrome (54066045).

The spelling of 40042041 in words is "forty million, forty-two thousand, forty-one".