42147078 has 8 divisors (see below), whose sum is σ = 84294168. Its totient is φ = 14049024.

The previous prime is 42147067. The next prime is 42147101. The reversal of 42147078 is 87074124.

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

42147078 is an admirable number.

It is a congruent number.

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, 3512251 + ... + 3512262.

It is an arithmetic number, because the mean of its divisors is an integer number (10536771).

Almost surely, 2^42147078 is an apocalyptic number.

42147078 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.

42147078 is a wasteful number, since it uses less digits than its factorization.

42147078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024518.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 42147078 is about 6492.0780956486. The cubic root of 42147078 is about 348.0079434044.

The spelling of 42147078 in words is "forty-two million, one hundred forty-seven thousand, seventy-eight".