442503673 has 4 divisors (see below), whose sum is σ = 465793360. Its totient is φ = 419213988.

The previous prime is 442503671. The next prime is 442503689. The reversal of 442503673 is 376305244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442503673 - 2¹ = 442503671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442503671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11644815 + ... + 11644852.

It is an arithmetic number, because the mean of its divisors is an integer number (116448340).

Almost surely, 2^442503673 is an apocalyptic number.

It is an amenable number.

442503673 is a deficient number, since it is larger than the sum of its proper divisors (23289687).

442503673 is a wasteful number, since it uses less digits than its factorization.

442503673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23289686.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 442503673 is about 21035.7712718122. The cubic root of 442503673 is about 762.0303932004.

The spelling of 442503673 in words is "four hundred forty-two million, five hundred three thousand, six hundred seventy-three".