2188620336 has 160 divisors (see below), whose sum is σ = 7021772800. Its totient is φ = 573246720.

The previous prime is 2188620299. The next prime is 2188620359. The reversal of 2188620336 is 6330268812.

It is a junction number, because it is equal to n+sod(n) for n = 2188620294 and 2188620303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192375 + ... + 203433.

It is an arithmetic number, because the mean of its divisors is an integer number (43886080).

Almost surely, 2^2188620336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2188620336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3510886400).

2188620336 is an abundant number, since it is smaller than the sum of its proper divisors (4833152464).

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

2188620336 is a wasteful number, since it uses less digits than its factorization.

2188620336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11127 (or 11121 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 2188620336 is about 46782.6926971931. The cubic root of 2188620336 is about 1298.3451005192.

The spelling of 2188620336 in words is "two billion, one hundred eighty-eight million, six hundred twenty thousand, three hundred thirty-six".