394442048 has 224 divisors, whose sum is σ = 1081479168. Its totient is φ = 137779200.

The previous prime is 394442029. The next prime is 394442051. The reversal of 394442048 is 840244493.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3010943 + ... + 3011073.

It is an arithmetic number, because the mean of its divisors is an integer number (4828032).

Almost surely, 2^394442048 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 394442048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540739584).

394442048 is an abundant number, since it is smaller than the sum of its proper divisors (687037120).

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

394442048 is a wasteful number, since it uses less digits than its factorization.

394442048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 394442048 is about 19860.5651480516. The cubic root of 394442048 is about 733.3777589248.

The spelling of 394442048 in words is "three hundred ninety-four million, four hundred forty-two thousand, forty-eight".