445402022140420 has 96 divisors (see below), whose sum is σ = 975273367541760. Its totient is φ = 170678424837120.

The previous prime is 445402022140409. The next prime is 445402022140433. The reversal of 445402022140420 is 24041220204544.

It is a super-2 number, since 2×445402022140420² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23190222 + ... + 37796698.

It is an arithmetic number, because the mean of its divisors is an integer number (10159097578560).

Almost surely, 2^{445402022140420} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445402022140420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487636683770880).

445402022140420 is an abundant number, since it is smaller than the sum of its proper divisors (529871345401340).

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

445402022140420 is a wasteful number, since it uses less digits than its factorization.

445402022140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14607013 (or 14607011 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 445402022140420 its reverse (24041220204544), we get a palindrome (469443242344964).

The spelling of 445402022140420 in words is "four hundred forty-five trillion, four hundred two billion, twenty-two million, one hundred forty thousand, four hundred twenty".