42666315 has 8 divisors (see below), whose sum is σ = 68266128. Its totient is φ = 22755360.

The previous prime is 42666313. The next prime is 42666331. The reversal of 42666315 is 51366624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42666315 - 2¹ = 42666313 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42666313) 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 7 ways as a sum of consecutive naturals, for example, 1422196 + ... + 1422225.

It is an arithmetic number, because the mean of its divisors is an integer number (8533266).

Almost surely, 2^42666315 is an apocalyptic number.

42666315 is a deficient number, since it is larger than the sum of its proper divisors (25599813).

42666315 is a wasteful number, since it uses less digits than its factorization.

42666315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844429.

The product of its digits is 25920, while the sum is 33.

The square root of 42666315 is about 6531.9457284947. The cubic root of 42666315 is about 349.4312258634.

The spelling of 42666315 in words is "forty-two million, six hundred sixty-six thousand, three hundred fifteen".