442244040020 has 48 divisors (see below), whose sum is σ = 989710299648. Its totient is φ = 165606270720.

The previous prime is 442244040019. The next prime is 442244040079. The reversal of 442244040020 is 20040442244.

It is a super-2 number, since 2×442244040020² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10206041 + ... + 10249280.

It is an arithmetic number, because the mean of its divisors is an integer number (20618964576).

Almost surely, 2^442244040020 is an apocalyptic number.

It is an amenable number.

442244040020 is an abundant number, since it is smaller than the sum of its proper divisors (547466259628).

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

442244040020 is a wasteful number, since it uses less digits than its factorization.

442244040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20455400 (or 20455398 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 442244040020 its reverse (20040442244), we get a palindrome (462284482264).

The spelling of 442244040020 in words is "four hundred forty-two billion, two hundred forty-four million, forty thousand, twenty".