2809200968 has 36 divisors (see below), whose sum is σ = 6129500985. Its totient is φ = 1203493536.

The previous prime is 2809200967. The next prime is 2809200983. The reversal of 2809200968 is 8690029082.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1784048644 + 1025152324 = 42238^2 + 32018^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=37478.

It is a super-2 number, since 2×2809200968² = 15783220157224274048, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2809200967) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1048046 + ... + 1050722.

Almost surely, 2^2809200968 is an apocalyptic number.

2809200968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2809200968 is an abundant number, since it is smaller than the sum of its proper divisors (3320300017).

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

2809200968 is an frugal number, since it uses more digits than its factorization.

2809200968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374 (or 2686 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2809200968 is about 53001.8958906189. The cubic root of 2809200968 is about 1411.0019148566.

The spelling of 2809200968 in words is "two billion, eight hundred nine million, two hundred thousand, nine hundred sixty-eight".