442662420465 has 48 divisors (see below), whose sum is σ = 769067440128. Its totient is φ = 235537682688.

The previous prime is 442662420349. The next prime is 442662420467. The reversal of 442662420465 is 564024266244.

It is not a de Polignac number, because 442662420465 - 2¹² = 442662416369 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 442662420465.

It is not an unprimeable number, because it can be changed into a prime (442662420467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46168402 + ... + 46177988.

It is an arithmetic number, because the mean of its divisors is an integer number (16022238336).

Almost surely, 2^442662420465 is an apocalyptic number.

442662420465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

442662420465 is a deficient number, since it is larger than the sum of its proper divisors (326405019663).

442662420465 is a wasteful number, since it uses less digits than its factorization.

442662420465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11878 (or 11875 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 45.

The spelling of 442662420465 in words is "four hundred forty-two billion, six hundred sixty-two million, four hundred twenty thousand, four hundred sixty-five".