42479478 has 80 divisors (see below), whose sum is σ = 103179120. Its totient is φ = 13017024.

The previous prime is 42479467. The next prime is 42479509. The reversal of 42479478 is 87497424.

42479478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent 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 39 ways as a sum of consecutive naturals, for example, 113700 + ... + 114072.

It is an arithmetic number, because the mean of its divisors is an integer number (1289739).

Almost surely, 2^42479478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42479478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51589560).

42479478 is an abundant number, since it is smaller than the sum of its proper divisors (60699642).

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

42479478 is a wasteful number, since it uses less digits than its factorization.

42479478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 434 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 42479478 is about 6517.6282496012. The cubic root of 42479478 is about 348.9204231230.

The spelling of 42479478 in words is "forty-two million, four hundred seventy-nine thousand, four hundred seventy-eight".