2196381600 has 216 divisors, whose sum is σ = 8851620960. Its totient is φ = 502018560.

The previous prime is 2196381599. The next prime is 2196381601. The reversal of 2196381600 is 61836912.

2196381600 is a `hidden beast` number, since 2 + 1 + 9 + 638 + 16 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2196381599) and next prime (2196381601).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2196381601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28611 + ... + 72189.

Almost surely, 2^2196381600 is an apocalyptic number.

2196381600 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 2196381600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4425810480).

2196381600 is an abundant number, since it is smaller than the sum of its proper divisors (6655239360).

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

2196381600 is a wasteful number, since it uses less digits than its factorization.

2196381600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43612 (or 43596 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2196381600 is about 46865.5694513574. The cubic root of 2196381600 is about 1299.8780161676.

The spelling of 2196381600 in words is "two billion, one hundred ninety-six million, three hundred eighty-one thousand, six hundred".