42870018 has 8 divisors (see below), whose sum is σ = 85740048. Its totient is φ = 14290004.

The previous prime is 42869989. The next prime is 42870019. The reversal of 42870018 is 81007824.

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

42870018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42870019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3572496 + ... + 3572507.

It is an arithmetic number, because the mean of its divisors is an integer number (10717506).

Almost surely, 2^42870018 is an apocalyptic number.

42870018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42870018 is a wasteful number, since it uses less digits than its factorization.

42870018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7145008.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 42870018 is about 6547.5199885147. The cubic root of 42870018 is about 349.9864430123.

The spelling of 42870018 in words is "forty-two million, eight hundred seventy thousand, eighteen".