42471906 has 16 divisors (see below), whose sum is σ = 85390848. Its totient is φ = 14082800.

The previous prime is 42471889. The next prime is 42471907. The reversal of 42471906 is 60917424.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42471907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17385 + ... + 19676.

It is an arithmetic number, because the mean of its divisors is an integer number (5336928).

Almost surely, 2^42471906 is an apocalyptic number.

42471906 is an abundant number, since it is smaller than the sum of its proper divisors (42918942).

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

42471906 is a wasteful number, since it uses less digits than its factorization.

42471906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37257.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 42471906 is about 6517.0473375602. The cubic root of 42471906 is about 348.8996901121.

The spelling of 42471906 in words is "forty-two million, four hundred seventy-one thousand, nine hundred six".