2447649844 has 12 divisors (see below), whose sum is σ = 4508828800. Its totient is φ = 1159413048.

The previous prime is 2447649839. The next prime is 2447649847. The reversal of 2447649844 is 4489467442.

It is a junction number, because it is equal to n+sod(n) for n = 2447649791 and 2447649800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2447649847) 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 3 ways as a sum of consecutive naturals, for example, 16102884 + ... + 16103035.

Almost surely, 2^2447649844 is an apocalyptic number.

It is an amenable number.

2447649844 is a deficient number, since it is larger than the sum of its proper divisors (2061178956).

2447649844 is a wasteful number, since it uses less digits than its factorization.

2447649844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32205942 (or 32205940 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 52.

The square root of 2447649844 is about 49473.7288265196. The cubic root of 2447649844 is about 1347.6685582826.

The spelling of 2447649844 in words is "two billion, four hundred forty-seven million, six hundred forty-nine thousand, eight hundred forty-four".