20224402020 has 144 divisors (see below), whose sum is σ = 63504150528. Its totient is φ = 5205876480.

The previous prime is 20224401997. The next prime is 20224402027. The reversal of 20224402020 is 2020442202.

20224402020 is a `hidden beast` number, since 2 + 0 + 22 + 440 + 202 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20224401984 and 20224402002.

It is not an unprimeable number, because it can be changed into a prime (20224402027) 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 47 ways as a sum of consecutive naturals, for example, 833865 + ... + 857775.

Almost surely, 2^20224402020 is an apocalyptic number.

20224402020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20224402020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31752075264).

20224402020 is an abundant number, since it is smaller than the sum of its proper divisors (43279748508).

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

20224402020 is a wasteful number, since it uses less digits than its factorization.

20224402020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24090 (or 24085 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20224402020 its reverse (2020442202), we get a palindrome (22244844222).

The spelling of 20224402020 in words is "twenty billion, two hundred twenty-four million, four hundred two thousand, twenty".