42489170 has 8 divisors (see below), whose sum is σ = 76480524. Its totient is φ = 16995664.

The previous prime is 42489163. The next prime is 42489191. The reversal of 42489170 is 7198424.

It can be written as a sum of positive squares in 2 ways, for example, as 42003361 + 485809 = 6481^2 + 697^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 42489170.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124449 + ... + 2124468.

Almost surely, 2^42489170 is an apocalyptic number.

42489170 is a deficient number, since it is larger than the sum of its proper divisors (33991354).

42489170 is a wasteful number, since it uses less digits than its factorization.

42489170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248924.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 42489170 is about 6518.3717291974. The cubic root of 42489170 is about 348.9469573441.

The spelling of 42489170 in words is "forty-two million, four hundred eighty-nine thousand, one hundred seventy".