42441613 has 2 divisors, whose sum is σ = 42441614. Its totient is φ = 42441612.

The previous prime is 42441569. The next prime is 42441617. The reversal of 42441613 is 31614424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33212169 + 9229444 = 5763^2 + 3038^2 .

It is a cyclic number.

It is not a de Polignac number, because 42441613 - 2⁹ = 42441101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42441617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21220806 + 21220807.

It is an arithmetic number, because the mean of its divisors is an integer number (21220807).

Almost surely, 2^42441613 is an apocalyptic number.

It is an amenable number.

42441613 is a deficient number, since it is larger than the sum of its proper divisors (1).

42441613 is an equidigital number, since it uses as much as digits as its factorization.

42441613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 42441613 is about 6514.7227876557. The cubic root of 42441613 is about 348.8167197196.

The spelling of 42441613 in words is "forty-two million, four hundred forty-one thousand, six hundred thirteen".