40303220050520 has 256 divisors, whose sum is σ = 109142492774400. Its totient is φ = 13095642193920.

The previous prime is 40303220050421. The next prime is 40303220050553. The reversal of 40303220050520 is 2505002230304.

It is a self number, because there is not a number n which added to its sum of digits gives 40303220050520.

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, 459624041 + ... + 459711719.

It is an arithmetic number, because the mean of its divisors is an integer number (426337862400).

Almost surely, 2^{40303220050520} is an apocalyptic number.

40303220050520 is a gapful number since it is divisible by the number (40) 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 40303220050520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54571246387200).

40303220050520 is an abundant number, since it is smaller than the sum of its proper divisors (68839272723880).

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

40303220050520 is a wasteful number, since it uses less digits than its factorization.

40303220050520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88378 (or 88374 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 40303220050520 its reverse (2505002230304), we get a palindrome (42808222280824).

The spelling of 40303220050520 in words is "forty trillion, three hundred three billion, two hundred twenty million, fifty thousand, five hundred twenty".