20340901443884 has 24 divisors (see below), whose sum is σ = 40689506611488. Its totient is φ = 8715878392320.

The previous prime is 20340901443833. The next prime is 20340901443887. The reversal of 20340901443884 is 48834410904302.

It is a super-3 number, since 3×20340901443884³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20340901443887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68632739 + ... + 68928474.

It is an arithmetic number, because the mean of its divisors is an integer number (1695396108812).

Almost surely, 2^{20340901443884} is an apocalyptic number.

It is an amenable number.

20340901443884 is an abundant number, since it is smaller than the sum of its proper divisors (20348605167604).

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

20340901443884 is a wasteful number, since it uses less digits than its factorization.

20340901443884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137566505 (or 137566503 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 20340901443884 in words is "twenty trillion, three hundred forty billion, nine hundred one million, four hundred forty-three thousand, eight hundred eighty-four".