2447779382 has 4 divisors (see below), whose sum is σ = 3671669076. Its totient is φ = 1223889690.

The previous prime is 2447779381. The next prime is 2447779421. The reversal of 2447779382 is 2839777442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2839777442 = 2 ⋅1419888721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2447779381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611944844 + ... + 611944847.

It is an arithmetic number, because the mean of its divisors is an integer number (917917269).

Almost surely, 2^2447779382 is an apocalyptic number.

2447779382 is a deficient number, since it is larger than the sum of its proper divisors (1223889694).

2447779382 is a wasteful number, since it uses less digits than its factorization.

2447779382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223889693.

The product of its digits is 4741632, while the sum is 53.

The square root of 2447779382 is about 49475.0379686565. The cubic root of 2447779382 is about 1347.6923322727.

The spelling of 2447779382 in words is "two billion, four hundred forty-seven million, seven hundred seventy-nine thousand, three hundred eighty-two".