42415441 has 2 divisors, whose sum is σ = 42415442. Its totient is φ = 42415440.

The previous prime is 42415397. The next prime is 42415469. The reversal of 42415441 is 14451424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41011216 + 1404225 = 6404^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 42415441 - 2¹³ = 42407249 is a prime.

It is a super-3 number, since 3×42415441³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (42419441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21207720 + 21207721.

It is an arithmetic number, because the mean of its divisors is an integer number (21207721).

Almost surely, 2^42415441 is an apocalyptic number.

It is an amenable number.

42415441 is a deficient number, since it is larger than the sum of its proper divisors (1).

42415441 is an equidigital number, since it uses as much as digits as its factorization.

42415441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2560, while the sum is 25.

The square root of 42415441 is about 6512.7137968745. The cubic root of 42415441 is about 348.7450046603.

Adding to 42415441 its reverse (14451424), we get a palindrome (56866865).

The spelling of 42415441 in words is "forty-two million, four hundred fifteen thousand, four hundred forty-one".