442548416 has 42 divisors (see below), whose sum is σ = 902736828. Its totient is φ = 215251200.

The previous prime is 442548397. The next prime is 442548419. The reversal of 442548416 is 614845244.

It is a self number, because there is not a number n which added to its sum of digits gives 442548416.

It is not an unprimeable number, because it can be changed into a prime (442548419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85091 + ... + 90141.

It is an arithmetic number, because the mean of its divisors is an integer number (21493734).

Almost surely, 2^442548416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442548416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451368414).

442548416 is an abundant number, since it is smaller than the sum of its proper divisors (460188412).

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

442548416 is an equidigital number, since it uses as much as digits as its factorization.

442548416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137 (or 5090 counting only the distinct ones).

The product of its digits is 122880, while the sum is 38.

The square root of 442548416 is about 21036.8347428980. The cubic root of 442548416 is about 762.0560761335.

The spelling of 442548416 in words is "four hundred forty-two million, five hundred forty-eight thousand, four hundred sixteen".