442562640520 has 128 divisors (see below), whose sum is σ = 1336972573440. Its totient is φ = 127330698240.

The previous prime is 442562640511. The next prime is 442562640523. The reversal of 442562640520 is 25046265244.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (442562640523) 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 31 ways as a sum of consecutive naturals, for example, 5486467 + ... + 5566546.

It is an arithmetic number, because the mean of its divisors is an integer number (10445098230).

Almost surely, 2^442562640520 is an apocalyptic number.

442562640520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442562640520 is an abundant number, since it is smaller than the sum of its proper divisors (894409932920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442562640520 is a wasteful number, since it uses less digits than its factorization.

442562640520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11053055 (or 11053051 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 442562640520 in words is "four hundred forty-two billion, five hundred sixty-two million, six hundred forty thousand, five hundred twenty".