442479048 has 64 divisors (see below), whose sum is σ = 1209453120. Its totient is φ = 133785600.

The previous prime is 442479047. The next prime is 442479091. The reversal of 442479048 is 840974244.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (442479047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135936 + ... + 139152.

It is an arithmetic number, because the mean of its divisors is an integer number (18897705).

Almost surely, 2^442479048 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 442479048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604726560).

442479048 is an abundant number, since it is smaller than the sum of its proper divisors (766974072).

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

442479048 is a wasteful number, since it uses less digits than its factorization.

442479048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758 (or 3754 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The square root of 442479048 is about 21035.1859511629. The cubic root of 442479048 is about 762.0162574634.

The spelling of 442479048 in words is "four hundred forty-two million, four hundred seventy-nine thousand, forty-eight".