20400608222384 has 40 divisors (see below), whose sum is σ = 43149758572032. Its totient is φ = 9286683609600.

The previous prime is 20400608222383. The next prime is 20400608222411. The reversal of 20400608222384 is 48322280600402.

It is not an unprimeable number, because it can be changed into a prime (20400608222383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671764592 + ... + 671794959.

Almost surely, 2^{20400608222384} is an apocalyptic number.

It is an amenable number.

20400608222384 is an abundant number, since it is smaller than the sum of its proper divisors (22749150349648).

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

20400608222384 is a wasteful number, since it uses less digits than its factorization.

20400608222384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343559645 (or 1343559639 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 41.

Adding to 20400608222384 its reverse (48322280600402), we get a palindrome (68722888822786).

The spelling of 20400608222384 in words is "twenty trillion, four hundred billion, six hundred eight million, two hundred twenty-two thousand, three hundred eighty-four".