442603052247 has 4 divisors (see below), whose sum is σ = 590137403000. Its totient is φ = 295068701496.

The previous prime is 442603052239. The next prime is 442603052263. The reversal of 442603052247 is 742250306244.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 442603052247 - 2³ = 442603052239 is a prime.

It is a super-2 number, since 2×442603052247² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442603052347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73767175372 + ... + 73767175377.

It is an arithmetic number, because the mean of its divisors is an integer number (147534350750).

Almost surely, 2^442603052247 is an apocalyptic number.

442603052247 is a deficient number, since it is larger than the sum of its proper divisors (147534350753).

442603052247 is a wasteful number, since it uses less digits than its factorization.

442603052247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147534350752.

The product of its (nonzero) digits is 322560, while the sum is 39.

The spelling of 442603052247 in words is "four hundred forty-two billion, six hundred three million, fifty-two thousand, two hundred forty-seven".