42352817 has 8 divisors (see below), whose sum is σ = 45665256. Its totient is φ = 39048192.

The previous prime is 42352771. The next prime is 42352837. The reversal of 42352817 is 71825324.

It can be written as a sum of positive squares in 4 ways, for example, as 1852321 + 40500496 = 1361^2 + 6364^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42352817 - 2⁸ = 42352561 is a prime.

It is a super-2 number, since 2×42352817² = 3587522215670978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42352837) 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, 14483 + ... + 17159.

It is an arithmetic number, because the mean of its divisors is an integer number (5708157).

Almost surely, 2^42352817 is an apocalyptic number.

It is an amenable number.

42352817 is a deficient number, since it is larger than the sum of its proper divisors (3312439).

42352817 is a wasteful number, since it uses less digits than its factorization.

42352817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907.

The product of its digits is 13440, while the sum is 32.

The square root of 42352817 is about 6507.9041941319. The cubic root of 42352817 is about 348.5732860291.

The spelling of 42352817 in words is "forty-two million, three hundred fifty-two thousand, eight hundred seventeen".