42056448 has 72 divisors (see below), whose sum is σ = 127938048. Its totient is φ = 12014592.

The previous prime is 42056423. The next prime is 42056449. The reversal of 42056448 is 84465024.

It is not an unprimeable number, because it can be changed into a prime (42056449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1465 + ... + 9287.

Almost surely, 2^42056448 is an apocalyptic number.

42056448 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42056448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63969024).

42056448 is an abundant number, since it is smaller than the sum of its proper divisors (85881600).

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

42056448 is an equidigital number, since it uses as much as digits as its factorization.

42056448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7849 (or 7835 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 42056448 is about 6485.0942938403. The cubic root of 42056448 is about 347.7583207691.

The spelling of 42056448 in words is "forty-two million, fifty-six thousand, four hundred forty-eight".