2993971680 has 384 divisors, whose sum is σ = 12064066560. Its totient is φ = 679311360.

The previous prime is 2993971649. The next prime is 2993971681. The reversal of 2993971680 is 861793992.

2993971680 is a `hidden beast` number, since 2 + 99 + 397 + 168 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993971681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5473167 + ... + 5473713.

It is an arithmetic number, because the mean of its divisors is an integer number (31416840).

Almost surely, 2^2993971680 is an apocalyptic number.

2993971680 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 2993971680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6032033280).

2993971680 is an abundant number, since it is smaller than the sum of its proper divisors (9070094880).

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

2993971680 is a wasteful number, since it uses less digits than its factorization.

2993971680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 2993971680 is about 54717.1972966452. The cubic root of 2993971680 is about 1441.2828845268.

The spelling of 2993971680 in words is "two billion, nine hundred ninety-three million, nine hundred seventy-one thousand, six hundred eighty".