42666332 has 6 divisors (see below), whose sum is σ = 74666088. Its totient is φ = 21333164.

The previous prime is 42666331. The next prime is 42666347. The reversal of 42666332 is 23366624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42666331) 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 as a sum of consecutive naturals, namely, 5333288 + ... + 5333295.

It is an arithmetic number, because the mean of its divisors is an integer number (12444348).

Almost surely, 2^42666332 is an apocalyptic number.

It is an amenable number.

42666332 is a deficient number, since it is larger than the sum of its proper divisors (31999756).

42666332 is a wasteful number, since it uses less digits than its factorization.

42666332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666587 (or 10666585 counting only the distinct ones).

The product of its digits is 31104, while the sum is 32.

The square root of 42666332 is about 6531.9470297913. The cubic root of 42666332 is about 349.4312722726.

The spelling of 42666332 in words is "forty-two million, six hundred sixty-six thousand, three hundred thirty-two".