442426624245 has 24 divisors (see below), whose sum is σ = 767194811136. Its totient is φ = 235861790688.

The previous prime is 442426624229. The next prime is 442426624249. The reversal of 442426624245 is 542426624244.

It is a happy number.

It is not a de Polignac number, because 442426624245 - 2⁴ = 442426624229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 442426624245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442426624249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1955649 + ... + 2170118.

It is an arithmetic number, because the mean of its divisors is an integer number (31966450464).

Almost surely, 2^442426624245 is an apocalyptic number.

442426624245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

442426624245 is a deficient number, since it is larger than the sum of its proper divisors (324768186891).

442426624245 is a wasteful number, since it uses less digits than its factorization.

442426624245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128161 (or 4128158 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 45.

Subtracting 442426624245 from its reverse (542426624244), we obtain a palindrome (99999999999).

The spelling of 442426624245 in words is "four hundred forty-two billion, four hundred twenty-six million, six hundred twenty-four thousand, two hundred forty-five".