2199279264 has 192 divisors, whose sum is σ = 7351223040. Its totient is φ = 559964160.

The previous prime is 2199279217. The next prime is 2199279323. The reversal of 2199279264 is 4629729912.

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, 249004 + ... + 257684.

It is an arithmetic number, because the mean of its divisors is an integer number (38287620).

Almost surely, 2^2199279264 is an apocalyptic number.

2199279264 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 2199279264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3675611520).

2199279264 is an abundant number, since it is smaller than the sum of its proper divisors (5151943776).

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

2199279264 is a wasteful number, since it uses less digits than its factorization.

2199279264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8743 (or 8735 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 2199279264 is about 46896.4738972985. The cubic root of 2199279264 is about 1300.4494035998.

The spelling of 2199279264 in words is "two billion, one hundred ninety-nine million, two hundred seventy-nine thousand, two hundred sixty-four".