42016241 has 2 divisors, whose sum is σ = 42016242. Its totient is φ = 42016240.

The previous prime is 42016237. The next prime is 42016259. The reversal of 42016241 is 14261024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40056241 + 1960000 = 6329^2 + 1400^2 .

It is a cyclic number.

It is not a de Polignac number, because 42016241 - 2² = 42016237 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42016211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21008120 + 21008121.

It is an arithmetic number, because the mean of its divisors is an integer number (21008121).

Almost surely, 2^42016241 is an apocalyptic number.

It is an amenable number.

42016241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42016241 is an equidigital number, since it uses as much as digits as its factorization.

42016241 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 20.

The square root of 42016241 is about 6481.9935976519. The cubic root of 42016241 is about 347.6474635946.

Adding to 42016241 its reverse (14261024), we get a palindrome (56277265).

It can be divided in two parts, 420 and 16241, that added together give a palindrome (16661).

The spelling of 42016241 in words is "forty-two million, sixteen thousand, two hundred forty-one".