2999681280 has 432 divisors, whose sum is σ = 11235173040. Its totient is φ = 738656256.

The previous prime is 2999681233. The next prime is 2999681287. The reversal of 2999681280 is 821869992.

It can be written as a sum of positive squares in 8 ways, for example, as 26378496 + 2973302784 = 5136^2 + 54528^2 .

It is not an unprimeable number, because it can be changed into a prime (2999681287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56597734 + ... + 56597786.

It is an arithmetic number, because the mean of its divisors is an integer number (26007345).

Almost surely, 2^2999681280 is an apocalyptic number.

2999681280 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 2999681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5617586520).

2999681280 is an abundant number, since it is smaller than the sum of its proper divisors (8235491760).

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

2999681280 is an equidigital number, since it uses as much as digits as its factorization.

2999681280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 2999681280 is about 54769.3461710107. The cubic root of 2999681280 is about 1442.1984936338.

The spelling of 2999681280 in words is "two billion, nine hundred ninety-nine million, six hundred eighty-one thousand, two hundred eighty".