442604449 has 16 divisors (see below), whose sum is σ = 533278080. Its totient is φ = 358853760.

The previous prime is 442604447. The next prime is 442604473. The reversal of 442604449 is 944406244.

It is not a de Polignac number, because 442604449 - 2¹ = 442604447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442604443) 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, 99027 + ... + 103399.

It is an arithmetic number, because the mean of its divisors is an integer number (33329880).

Almost surely, 2^442604449 is an apocalyptic number.

It is an amenable number.

442604449 is a deficient number, since it is larger than the sum of its proper divisors (90673631).

442604449 is a wasteful number, since it uses less digits than its factorization.

442604449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160.

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 442604449 is about 21038.1664837980. The cubic root of 442604449 is about 762.0882371993.

The spelling of 442604449 in words is "four hundred forty-two million, six hundred four thousand, four hundred forty-nine".