42437413 has 2 divisors, whose sum is σ = 42437414. Its totient is φ = 42437412.

The previous prime is 42437387. The next prime is 42437443. The reversal of 42437413 is 31473424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29354724 + 13082689 = 5418^2 + 3617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42437413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42437443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21218706 + 21218707.

It is an arithmetic number, because the mean of its divisors is an integer number (21218707).

Almost surely, 2^42437413 is an apocalyptic number.

It is an amenable number.

42437413 is a deficient number, since it is larger than the sum of its proper divisors (1).

42437413 is an equidigital number, since it uses as much as digits as its factorization.

42437413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 42437413 is about 6514.4004328871. The cubic root of 42437413 is about 348.8052130995.

The spelling of 42437413 in words is "forty-two million, four hundred thirty-seven thousand, four hundred thirteen".