2196321264 has 160 divisors (see below), whose sum is σ = 6865632000. Its totient is φ = 669586176.

The previous prime is 2196321217. The next prime is 2196321271. The reversal of 2196321264 is 4621236912.

It is a happy number.

2196321264 is a `hidden beast` number, since 2 + 1 + 9 + 632 + 12 + 6 + 4 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233419 + ... + 242645.

It is an arithmetic number, because the mean of its divisors is an integer number (42910200).

Almost surely, 2^2196321264 is an apocalyptic number.

2196321264 is a gapful number since it is divisible by the number (24) 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 2196321264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3432816000).

2196321264 is an abundant number, since it is smaller than the sum of its proper divisors (4669310736).

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

2196321264 is a wasteful number, since it uses less digits than its factorization.

2196321264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292 (or 9280 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2196321264 is about 46864.9257334310. The cubic root of 2196321264 is about 1299.8661132332.

The spelling of 2196321264 in words is "two billion, one hundred ninety-six million, three hundred twenty-one thousand, two hundred sixty-four".