40505041 has 4 divisors (see below), whose sum is σ = 40625572. Its totient is φ = 40384512.

The previous prime is 40505039. The next prime is 40505053. The reversal of 40505041 is 14050504.

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 8242641 + 32262400 = 2871^2 + 5680^2 .

It is a cyclic number.

It is not a de Polignac number, because 40505041 - 2¹ = 40505039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40505021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59760 + ... + 60433.

It is an arithmetic number, because the mean of its divisors is an integer number (10156393).

Almost surely, 2^40505041 is an apocalyptic number.

It is an amenable number.

40505041 is a deficient number, since it is larger than the sum of its proper divisors (120531).

40505041 is a wasteful number, since it uses less digits than its factorization.

40505041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120530.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 40505041 is about 6364.3570767203. The cubic root of 40505041 is about 343.4285203341.

Adding to 40505041 its reverse (14050504), we get a palindrome (54555545).

The spelling of 40505041 in words is "forty million, five hundred five thousand, forty-one".