202020323244240 has 320 divisors, whose sum is σ = 635467733747712. Its totient is φ = 53085512448000.

The previous prime is 202020323244239. The next prime is 202020323244253. The reversal of 202020323244240 is 42442323020202.

It is a super-2 number, since 2×202020323244240² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 202020323244198 and 202020323244207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25217861835 + ... + 25217869845.

Almost surely, 2^{202020323244240} is an apocalyptic number.

202020323244240 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 202020323244240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317733866873856).

202020323244240 is an abundant number, since it is smaller than the sum of its proper divisors (433447410503472).

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

202020323244240 is a wasteful number, since it uses less digits than its factorization.

202020323244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12938 (or 12932 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 202020323244240 its reverse (42442323020202), we get a palindrome (244462646264442).

The spelling of 202020323244240 in words is "two hundred two trillion, twenty billion, three hundred twenty-three million, two hundred forty-four thousand, two hundred forty".