2439253279 has 4 divisors (see below), whose sum is σ = 2582738784. Its totient is φ = 2295767776.

The previous prime is 2439253273. The next prime is 2439253283. The reversal of 2439253279 is 9723529342.

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 2439253279 - 2²⁵ = 2405698847 is a prime.

It is a super-2 number, since 2×2439253279² = 11899913118224503682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439253273) 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, 71742727 + ... + 71742760.

It is an arithmetic number, because the mean of its divisors is an integer number (645684696).

Almost surely, 2^2439253279 is an apocalyptic number.

2439253279 is a deficient number, since it is larger than the sum of its proper divisors (143485505).

2439253279 is a wasteful number, since it uses less digits than its factorization.

2439253279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143485504.

The product of its digits is 816480, while the sum is 46.

The square root of 2439253279 is about 49388.7971001522. The cubic root of 2439253279 is about 1346.1257517078.

The spelling of 2439253279 in words is "two billion, four hundred thirty-nine million, two hundred fifty-three thousand, two hundred seventy-nine".