436640041 has 2 divisors, whose sum is σ = 436640042. Its totient is φ = 436640040.

The previous prime is 436640003. The next prime is 436640047. The reversal of 436640041 is 140046634.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255872016 + 180768025 = 15996^2 + 13445^2 .

It is a cyclic number.

It is not a de Polignac number, because 436640041 - 2⁷ = 436639913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 436639991 and 436640009.

It is not a weakly prime, because it can be changed into another prime (436640047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218320020 + 218320021.

It is an arithmetic number, because the mean of its divisors is an integer number (218320021).

Almost surely, 2^436640041 is an apocalyptic number.

It is an amenable number.

436640041 is a deficient number, since it is larger than the sum of its proper divisors (1).

436640041 is an equidigital number, since it uses as much as digits as its factorization.

436640041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 436640041 is about 20895.9335996265. The cubic root of 436640041 is about 758.6495182345.

Adding to 436640041 its reverse (140046634), we get a palindrome (576686675).

The spelling of 436640041 in words is "four hundred thirty-six million, six hundred forty thousand, forty-one".