42046917 has 8 divisors (see below), whose sum is σ = 61159200. Its totient is φ = 25482960.

The previous prime is 42046903. The next prime is 42046937. The reversal of 42046917 is 71964024.

It is a happy number.

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

It is not a de Polignac number, because 42046917 - 2¹⁰ = 42045893 is a prime.

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 a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1274149 = 42046917 / (4 + 2 + 0 + 4 + 6 + 9 + 1 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42046937) 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 7 ways as a sum of consecutive naturals, for example, 637042 + ... + 637107.

It is an arithmetic number, because the mean of its divisors is an integer number (7644900).

Almost surely, 2^42046917 is an apocalyptic number.

It is an amenable number.

42046917 is a deficient number, since it is larger than the sum of its proper divisors (19112283).

42046917 is a wasteful number, since it uses less digits than its factorization.

42046917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274163.

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

The square root of 42046917 is about 6484.3594132343. The cubic root of 42046917 is about 347.7320486585.

The spelling of 42046917 in words is "forty-two million, forty-six thousand, nine hundred seventeen".