2947466880 has 160 divisors (see below), whose sum is σ = 10526121540. Its totient is φ = 785977344.

The previous prime is 2947466861. The next prime is 2947466911. The reversal of 2947466880 is 886647492.

2947466880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2908229184 + 39237696 = 53928^2 + 6264^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×2947466880² = 17375122017393868800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23412 + ... + 80268.

Almost surely, 2^2947466880 is an apocalyptic number.

2947466880 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 2947466880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5263060770).

2947466880 is an abundant number, since it is smaller than the sum of its proper divisors (7578654660).

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

2947466880 is an equidigital number, since it uses as much as digits as its factorization.

2947466880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56888 (or 56867 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 2947466880 is about 54290.5781881166. The cubic root of 2947466880 is about 1433.7815181576.

The spelling of 2947466880 in words is "two billion, nine hundred forty-seven million, four hundred sixty-six thousand, eight hundred eighty".