42448578 has 8 divisors (see below), whose sum is σ = 84897168. Its totient is φ = 14149524.

The previous prime is 42448559. The next prime is 42448591. The reversal of 42448578 is 87584424.

42448578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

42448578 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3537376 + ... + 3537387.

It is an arithmetic number, because the mean of its divisors is an integer number (10612146).

Almost surely, 2^42448578 is an apocalyptic number.

42448578 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.

42448578 is a wasteful number, since it uses less digits than its factorization.

42448578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074768.

The product of its digits is 286720, while the sum is 42.

The square root of 42448578 is about 6515.2573241584. The cubic root of 42448578 is about 348.8357998581.

The spelling of 42448578 in words is "forty-two million, four hundred forty-eight thousand, five hundred seventy-eight".