42031441 has 2 divisors, whose sum is σ = 42031442. Its totient is φ = 42031440.

The previous prime is 42031417. The next prime is 42031447. The reversal of 42031441 is 14413024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37638225 + 4393216 = 6135^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 42031441 - 2⁹ = 42030929 is a prime.

It is not a weakly prime, because it can be changed into another prime (42031447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015720 + 21015721.

It is an arithmetic number, because the mean of its divisors is an integer number (21015721).

Almost surely, 2^42031441 is an apocalyptic number.

It is an amenable number.

42031441 is a deficient number, since it is larger than the sum of its proper divisors (1).

42031441 is an equidigital number, since it uses as much as digits as its factorization.

42031441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42031441 is about 6483.1659704191. The cubic root of 42031441 is about 347.6893807536.

Adding to 42031441 its reverse (14413024), we get a palindrome (56444465).

The spelling of 42031441 in words is "forty-two million, thirty-one thousand, four hundred forty-one".