42074741 has 2 divisors, whose sum is σ = 42074742. Its totient is φ = 42074740.

The previous prime is 42074713. The next prime is 42074743. The reversal of 42074741 is 14747024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27520516 + 14554225 = 5246^2 + 3815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42074741 is a prime.

Together with 42074743, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_2551853 and since 42074741 and 2551853 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42074743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21037370 + 21037371.

It is an arithmetic number, because the mean of its divisors is an integer number (21037371).

Almost surely, 2^42074741 is an apocalyptic number.

It is an amenable number.

42074741 is a deficient number, since it is larger than the sum of its proper divisors (1).

42074741 is an equidigital number, since it uses as much as digits as its factorization.

42074741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 42074741 is about 6486.5045286348. The cubic root of 42074741 is about 347.8087341313.

The spelling of 42074741 in words is "forty-two million, seventy-four thousand, seven hundred forty-one".