42330829 has 2 divisors, whose sum is σ = 42330830. Its totient is φ = 42330828.

The previous prime is 42330823. The next prime is 42330853. The reversal of 42330829 is 92803324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35581225 + 6749604 = 5965^2 + 2598^2 .

It is a cyclic number.

It is not a de Polignac number, because 42330829 - 2¹⁷ = 42199757 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42330829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42330823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21165414 + 21165415.

It is an arithmetic number, because the mean of its divisors is an integer number (21165415).

Almost surely, 2^42330829 is an apocalyptic number.

It is an amenable number.

42330829 is a deficient number, since it is larger than the sum of its proper divisors (1).

42330829 is an equidigital number, since it uses as much as digits as its factorization.

42330829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 42330829 is about 6506.2146444765. The cubic root of 42330829 is about 348.5129535121.

The spelling of 42330829 in words is "forty-two million, three hundred thirty thousand, eight hundred twenty-nine".