2439261979 has 16 divisors (see below), whose sum is σ = 3053799936. Its totient is φ = 1892822400.

The previous prime is 2439261973. The next prime is 2439261997. The reversal of 2439261979 is 9791629342.

It is a happy number.

It is not a de Polignac number, because 2439261979 - 2⁵ = 2439261947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2439261973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47167 + ... + 84280.

It is an arithmetic number, because the mean of its divisors is an integer number (190862496).

Almost surely, 2^2439261979 is an apocalyptic number.

2439261979 is a deficient number, since it is larger than the sum of its proper divisors (614537957).

2439261979 is a wasteful number, since it uses less digits than its factorization.

2439261979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131706.

The product of its digits is 1469664, while the sum is 52.

The square root of 2439261979 is about 49388.8851767278. The cubic root of 2439261979 is about 1346.1273520992.

The spelling of 2439261979 in words is "two billion, four hundred thirty-nine million, two hundred sixty-one thousand, nine hundred seventy-nine".