2979449782 has 16 divisors (see below), whose sum is σ = 4481231040. Its totient is φ = 1485713152.

The previous prime is 2979449761. The next prime is 2979449783. The reversal of 2979449782 is 2879449792.

It is a self number, because there is not a number n which added to its sum of digits gives 2979449782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2979449783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881363 + ... + 1882945.

It is an arithmetic number, because the mean of its divisors is an integer number (280076940).

Almost surely, 2^2979449782 is an apocalyptic number.

2979449782 is a deficient number, since it is larger than the sum of its proper divisors (1501781258).

2979449782 is a wasteful number, since it uses less digits than its factorization.

2979449782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527.

The product of its digits is 18289152, while the sum is 61.

The square root of 2979449782 is about 54584.3364162284. The cubic root of 2979449782 is about 1438.9488506187.

The spelling of 2979449782 in words is "two billion, nine hundred seventy-nine million, four hundred forty-nine thousand, seven hundred eighty-two".