431442041 has 2 divisors, whose sum is σ = 431442042. Its totient is φ = 431442040.

The previous prime is 431442029. The next prime is 431442047. The reversal of 431442041 is 140244134.

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., 367105600 + 64336441 = 19160^2 + 8021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431442041 is a prime.

It is a super-2 number, since 2×431442041² = 372284469484491362, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431441998 and 431442016.

It is not a weakly prime, because it can be changed into another prime (431442047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215721020 + 215721021.

It is an arithmetic number, because the mean of its divisors is an integer number (215721021).

Almost surely, 2^431442041 is an apocalyptic number.

It is an amenable number.

431442041 is a deficient number, since it is larger than the sum of its proper divisors (1).

431442041 is an equidigital number, since it uses as much as digits as its factorization.

431442041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 431442041 is about 20771.1829465729. The cubic root of 431442041 is about 755.6270340305.

Adding to 431442041 its reverse (140244134), we get a palindrome (571686175).

The spelling of 431442041 in words is "four hundred thirty-one million, four hundred forty-two thousand, forty-one".