42666574 has 8 divisors (see below), whose sum is σ = 64066320. Its totient is φ = 21311136.

The previous prime is 42666523. The next prime is 42666577. The reversal of 42666574 is 47566624.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42666577) 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, 8554 + ... + 12589.

It is an arithmetic number, because the mean of its divisors is an integer number (8008290).

Almost surely, 2^42666574 is an apocalyptic number.

42666574 is a deficient number, since it is larger than the sum of its proper divisors (21399746).

42666574 is a wasteful number, since it uses less digits than its factorization.

42666574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22154.

The product of its digits is 241920, while the sum is 40.

The square root of 42666574 is about 6531.9655541039. The cubic root of 42666574 is about 349.4319329200.

The spelling of 42666574 in words is "forty-two million, six hundred sixty-six thousand, five hundred seventy-four".