42748066 has 8 divisors (see below), whose sum is σ = 64155420. Its totient is φ = 21362928.

The previous prime is 42748033. The next prime is 42748067. The reversal of 42748066 is 66084724.

It can be written as a sum of positive squares in 2 ways, for example, as 41873841 + 874225 = 6471^2 + 935^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42748067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640 + ... + 9268.

Almost surely, 2^42748066 is an apocalyptic number.

42748066 is a deficient number, since it is larger than the sum of its proper divisors (21407354).

42748066 is a wasteful number, since it uses less digits than its factorization.

42748066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11108.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 42748066 is about 6538.2005169618. The cubic root of 42748066 is about 349.6542599410.

The spelling of 42748066 in words is "forty-two million, seven hundred forty-eight thousand, sixty-six".