42170869 has 8 divisors (see below), whose sum is σ = 45543680. Its totient is φ = 38816496.

The previous prime is 42170867. The next prime is 42170893. The reversal of 42170869 is 96807124.

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 42170869 - 2¹ = 42170867 is a prime.

It is a super-2 number, since 2×42170869² = 3556764384430322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42170867) 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, 352 + ... + 9190.

It is an arithmetic number, because the mean of its divisors is an integer number (5692960).

Almost surely, 2^42170869 is an apocalyptic number.

It is an amenable number.

42170869 is a deficient number, since it is larger than the sum of its proper divisors (3372811).

42170869 is a wasteful number, since it uses less digits than its factorization.

42170869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 42170869 is about 6493.9101472072. The cubic root of 42170869 is about 348.0734117596.

The spelling of 42170869 in words is "forty-two million, one hundred seventy thousand, eight hundred sixty-nine".