2047947440 has 160 divisors (see below), whose sum is σ = 5961047040. Its totient is φ = 635673600.

The previous prime is 2047947431. The next prime is 2047947443. The reversal of 2047947440 is 447497402.

It is not an unprimeable number, because it can be changed into a prime (2047947443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1915226 + ... + 1916294.

It is an arithmetic number, because the mean of its divisors is an integer number (37256544).

Almost surely, 2^2047947440 is an apocalyptic number.

2047947440 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 2047947440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2980523520).

2047947440 is an abundant number, since it is smaller than the sum of its proper divisors (3913099600).

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

2047947440 is a wasteful number, since it uses less digits than its factorization.

2047947440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 2047947440 is about 45254.2532807691. The cubic root of 2047947440 is about 1269.9099777057.

The spelling of 2047947440 in words is "two billion, forty-seven million, nine hundred forty-seven thousand, four hundred forty".