40660041 has 4 divisors (see below), whose sum is σ = 54213392. Its totient is φ = 27106692.

The previous prime is 40660033. The next prime is 40660043. The reversal of 40660041 is 14006604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40660041 - 2³ = 40660033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40660043) 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, 6776671 + ... + 6776676.

It is an arithmetic number, because the mean of its divisors is an integer number (13553348).

Almost surely, 2^40660041 is an apocalyptic number.

It is an amenable number.

40660041 is a deficient number, since it is larger than the sum of its proper divisors (13553351).

40660041 is a wasteful number, since it uses less digits than its factorization.

40660041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13553350.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40660041 is about 6376.5226416912. The cubic root of 40660041 is about 343.8660269043.

Adding to 40660041 its reverse (14006604), we get a palindrome (54666645).

The spelling of 40660041 in words is "forty million, six hundred sixty thousand, forty-one".