442473448 has 16 divisors (see below), whose sum is σ = 865709280. Its totient is φ = 211617648.

The previous prime is 442473373. The next prime is 442473457. The reversal of 442473448 is 844374244.

It is a self number, because there is not a number n which added to its sum of digits gives 442473448.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202190 + ... + 1202557.

It is an arithmetic number, because the mean of its divisors is an integer number (54106830).

Almost surely, 2^442473448 is an apocalyptic number.

It is an amenable number.

442473448 is a deficient number, since it is larger than the sum of its proper divisors (423235832).

442473448 is a wasteful number, since it uses less digits than its factorization.

442473448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404776 (or 2404772 counting only the distinct ones).

The product of its digits is 344064, while the sum is 40.

The square root of 442473448 is about 21035.0528404376. The cubic root of 442473448 is about 762.0130427658.

The spelling of 442473448 in words is "four hundred forty-two million, four hundred seventy-three thousand, four hundred forty-eight".