42459666 has 8 divisors (see below), whose sum is σ = 84919344. Its totient is φ = 14153220.

The previous prime is 42459653. The next prime is 42459667. The reversal of 42459666 is 66695424.

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

42459666 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42459667) 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, 3538300 + ... + 3538311.

It is an arithmetic number, because the mean of its divisors is an integer number (10614918).

Almost surely, 2^42459666 is an apocalyptic number.

42459666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42459666 is a wasteful number, since it uses less digits than its factorization.

42459666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7076616.

The product of its digits is 311040, while the sum is 42.

The square root of 42459666 is about 6516.1081943135. The cubic root of 42459666 is about 348.8661703660.

The spelling of 42459666 in words is "forty-two million, four hundred fifty-nine thousand, six hundred sixty-six".