42659329 has 4 divisors (see below), whose sum is σ = 43464276. Its totient is φ = 41854384.

The previous prime is 42659327. The next prime is 42659333. The reversal of 42659329 is 92395624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29322225 + 13337104 = 5415^2 + 3652^2 .

It is a cyclic number.

It is not a de Polignac number, because 42659329 - 2¹ = 42659327 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42659291 and 42659300.

It is not an unprimeable number, because it can be changed into a prime (42659327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402394 + ... + 402499.

It is an arithmetic number, because the mean of its divisors is an integer number (10866069).

Almost surely, 2^42659329 is an apocalyptic number.

It is an amenable number.

42659329 is a deficient number, since it is larger than the sum of its proper divisors (804947).

42659329 is an equidigital number, since it uses as much as digits as its factorization.

42659329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804946.

The product of its digits is 116640, while the sum is 40.

The square root of 42659329 is about 6531.4109501700. The cubic root of 42659329 is about 349.4121533640.

The spelling of 42659329 in words is "forty-two million, six hundred fifty-nine thousand, three hundred twenty-nine".