42304529 has 2 divisors, whose sum is σ = 42304530. Its totient is φ = 42304528.

The previous prime is 42304523. The next prime is 42304543. The reversal of 42304529 is 92540324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40666129 + 1638400 = 6377^2 + 1280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42304529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42304523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21152264 + 21152265.

It is an arithmetic number, because the mean of its divisors is an integer number (21152265).

Almost surely, 2^42304529 is an apocalyptic number.

It is an amenable number.

42304529 is a deficient number, since it is larger than the sum of its proper divisors (1).

42304529 is an equidigital number, since it uses as much as digits as its factorization.

42304529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 42304529 is about 6504.1931859378. The cubic root of 42304529 is about 348.4407619219.

The spelling of 42304529 in words is "forty-two million, three hundred four thousand, five hundred twenty-nine".