42448028 has 24 divisors (see below), whose sum is σ = 87192672. Its totient is φ = 17699904.

The previous prime is 42447983. The next prime is 42448037. The reversal of 42448028 is 82084424.

42448028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 42447985 and 42448003.

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 7 ways as a sum of consecutive naturals, for example, 19451 + ... + 21522.

It is an arithmetic number, because the mean of its divisors is an integer number (3633028).

Almost surely, 2^42448028 is an apocalyptic number.

It is an amenable number.

42448028 is an abundant number, since it is smaller than the sum of its proper divisors (44744644).

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

42448028 is a wasteful number, since it uses less digits than its factorization.

42448028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41021 (or 41019 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 42448028 is about 6515.2151154049. The cubic root of 42448028 is about 348.8342932468.

The spelling of 42448028 in words is "forty-two million, four hundred forty-eight thousand, twenty-eight".