2049448747 has 4 divisors (see below), whose sum is σ = 2052222760. Its totient is φ = 2046674736.

The previous prime is 2049448733. The next prime is 2049448801. The reversal of 2049448747 is 7478449402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2049448747 - 2⁷ = 2049448619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2049448747.

It is not an unprimeable number, because it can be changed into a prime (2049448717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385898 + ... + 1387375.

It is an arithmetic number, because the mean of its divisors is an integer number (513055690).

Almost surely, 2^2049448747 is an apocalyptic number.

2049448747 is a deficient number, since it is larger than the sum of its proper divisors (2774013).

2049448747 is an equidigital number, since it uses as much as digits as its factorization.

2049448747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2774012.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The square root of 2049448747 is about 45270.8377103848. The cubic root of 2049448747 is about 1270.2202166330.

The spelling of 2049448747 in words is "two billion, forty-nine million, four hundred forty-eight thousand, seven hundred forty-seven".