42660074 has 8 divisors (see below), whose sum is σ = 64155780. Its totient is φ = 21274816.

The previous prime is 42660053. The next prime is 42660083. The reversal of 42660074 is 47006624.

42660074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41925625 + 734449 = 6475^2 + 857^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26639 + ... + 28194.

Almost surely, 2^42660074 is an apocalyptic number.

42660074 is a deficient number, since it is larger than the sum of its proper divisors (21495706).

42660074 is a wasteful number, since it uses less digits than its factorization.

42660074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55224.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 42660074 is about 6531.4679820083. The cubic root of 42660074 is about 349.4141873899.

Adding to 42660074 its reverse (47006624), we get a palindrome (89666698).

The spelling of 42660074 in words is "forty-two million, six hundred sixty thousand, seventy-four".