42066329 has 4 divisors (see below), whose sum is σ = 42080976. Its totient is φ = 42051684.

The previous prime is 42066307. The next prime is 42066371. The reversal of 42066329 is 92366024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42066329 - 2¹⁶ = 42000793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42066295 and 42066304.

It is not an unprimeable number, because it can be changed into a prime (42066929) 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, 1439 + ... + 9284.

It is an arithmetic number, because the mean of its divisors is an integer number (10520244).

Almost surely, 2^42066329 is an apocalyptic number.

It is an amenable number.

42066329 is a deficient number, since it is larger than the sum of its proper divisors (14647).

42066329 is a wasteful number, since it uses less digits than its factorization.

42066329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14646.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 42066329 is about 6485.8560730254. The cubic root of 42066329 is about 347.7855534612.

The spelling of 42066329 in words is "forty-two million, sixty-six thousand, three hundred twenty-nine".