20000442023320 has 64 divisors (see below), whose sum is σ = 49092491715840. Its totient is φ = 7272814281600.

The previous prime is 20000442023291. The next prime is 20000442023321. The reversal of 20000442023320 is 2332024400002.

It is a super-2 number, since 2×20000442023320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20000442023291 and 20000442023300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000442023321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62788855 + ... + 63106585.

It is an arithmetic number, because the mean of its divisors is an integer number (767070183060).

Almost surely, 2^{20000442023320} is an apocalyptic number.

20000442023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000442023320 is an abundant number, since it is smaller than the sum of its proper divisors (29092049692520).

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

20000442023320 is a wasteful number, since it uses less digits than its factorization.

20000442023320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460816 (or 460812 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20000442023320 its reverse (2332024400002), we get a palindrome (22332466423322).

The spelling of 20000442023320 in words is "twenty trillion, four hundred forty-two million, twenty-three thousand, three hundred twenty".