42072341 has 2 divisors, whose sum is σ = 42072342. Its totient is φ = 42072340.

The previous prime is 42072311. The next prime is 42072343. The reversal of 42072341 is 14327024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38254225 + 3818116 = 6185^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 42072341 - 2¹⁰ = 42071317 is a prime.

Together with 42072343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42072343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21036170 + 21036171.

It is an arithmetic number, because the mean of its divisors is an integer number (21036171).

Almost surely, 2^42072341 is an apocalyptic number.

It is an amenable number.

42072341 is a deficient number, since it is larger than the sum of its proper divisors (1).

42072341 is an equidigital number, since it uses as much as digits as its factorization.

42072341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42072341 is about 6486.3195265112. The cubic root of 42072341 is about 347.8021208458.

Adding to 42072341 its reverse (14327024), we get a palindrome (56399365).

The spelling of 42072341 in words is "forty-two million, seventy-two thousand, three hundred forty-one".