4065404041 has 4 divisors (see below), whose sum is σ = 4065544912. Its totient is φ = 4065263172.

The previous prime is 4065404023. The next prime is 4065404053. The reversal of 4065404041 is 1404045604.

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 a cyclic number.

It is not a de Polignac number, because 4065404041 - 2⁵ = 4065404009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4065404011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9675 + ... + 90688.

It is an arithmetic number, because the mean of its divisors is an integer number (1016386228).

Almost surely, 2^4065404041 is an apocalyptic number.

It is an amenable number.

4065404041 is a deficient number, since it is larger than the sum of its proper divisors (140871).

4065404041 is a wasteful number, since it uses less digits than its factorization.

4065404041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140870.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4065404041 is about 63760.5210220243. The cubic root of 4065404041 is about 1596.0061903946.

Adding to 4065404041 its reverse (1404045604), we get a palindrome (5469449645).

The spelling of 4065404041 in words is "four billion, sixty-five million, four hundred four thousand, forty-one".