42689170 has 16 divisors (see below), whose sum is σ = 79319808. Its totient is φ = 16524720.

The previous prime is 42689167. The next prime is 42689197. The reversal of 42689170 is 7198624.

It is a super-3 number, since 3×42689170³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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, 68544 + ... + 69163.

It is an arithmetic number, because the mean of its divisors is an integer number (4957488).

Almost surely, 2^42689170 is an apocalyptic number.

42689170 is a deficient number, since it is larger than the sum of its proper divisors (36630638).

42689170 is a wasteful number, since it uses less digits than its factorization.

42689170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137745.

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

The square root of 42689170 is about 6533.6949729843. The cubic root of 42689170 is about 349.4936078236.

The spelling of 42689170 in words is "forty-two million, six hundred eighty-nine thousand, one hundred seventy".