40823995212 has 288 divisors, whose sum is σ = 140233766400. Its totient is φ = 9669335040.

The previous prime is 40823995169. The next prime is 40823995237. The reversal of 40823995212 is 21259932804.

40823995212 = 319² + 320² + ... + 4966².

40823995212 is a `hidden beast` number, since 40 + 8 + 2 + 399 + 5 + 212 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2984164 + ... + 2997812.

It is an arithmetic number, because the mean of its divisors is an integer number (486922800).

Almost surely, 2^40823995212 is an apocalyptic number.

40823995212 is a gapful number since it is divisible by the number (42) 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 40823995212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70116883200).

40823995212 is an abundant number, since it is smaller than the sum of its proper divisors (99409771188).

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

40823995212 is a wasteful number, since it uses less digits than its factorization.

40823995212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13773 (or 13768 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 40823995212 in words is "forty billion, eight hundred twenty-three million, nine hundred ninety-five thousand, two hundred twelve".