20202000280 has 384 divisors, whose sum is σ = 59830848000. Its totient is φ = 6128559360.

The previous prime is 20202000257. The next prime is 20202000281. The reversal of 20202000280 is 8200020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202000281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71385019 + ... + 71385301.

It is an arithmetic number, because the mean of its divisors is an integer number (155809500).

Almost surely, 2^20202000280 is an apocalyptic number.

20202000280 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 20202000280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29915424000).

20202000280 is an abundant number, since it is smaller than the sum of its proper divisors (39628847720).

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

20202000280 is a wasteful number, since it uses less digits than its factorization.

20202000280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20202000280 its reverse (8200020202), we get a palindrome (28402020482).

The spelling of 20202000280 in words is "twenty billion, two hundred two million, two hundred eighty", and thus it is an aban number.