2185696320 has 112 divisors (see below), whose sum is σ = 6955219008. Its totient is φ = 581539840.

The previous prime is 2185696283. The next prime is 2185696327. The reversal of 2185696320 is 236965812.

It is not an unprimeable number, because it can be changed into a prime (2185696327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469042 + ... + 473678.

Almost surely, 2^2185696320 is an apocalyptic number.

2185696320 is a gapful number since it is divisible by the number (20) 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 2185696320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3477609504).

2185696320 is an abundant number, since it is smaller than the sum of its proper divisors (4769522688).

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

2185696320 is a wasteful number, since it uses less digits than its factorization.

2185696320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148 (or 5138 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 2185696320 is about 46751.4312080390. The cubic root of 2185696320 is about 1297.7666426802.

The spelling of 2185696320 in words is "two billion, one hundred eighty-five million, six hundred ninety-six thousand, three hundred twenty".