260828239 has 32 divisors (see below), whose sum is σ = 316293120. Its totient is φ = 210464352.

The previous prime is 260828147. The next prime is 260828251. The reversal of 260828239 is 932828062.

It is not a de Polignac number, because 260828239 - 2⁷ = 260828111 is a prime.

It is a super-2 number, since 2×260828239² = 136062740519682242, 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 (260828299) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1457052 + ... + 1457230.

It is an arithmetic number, because the mean of its divisors is an integer number (9884160).

Almost surely, 2^260828239 is an apocalyptic number.

260828239 is a deficient number, since it is larger than the sum of its proper divisors (55464881).

260828239 is a wasteful number, since it uses less digits than its factorization.

260828239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 260828239 is about 16150.1776770412. The cubic root of 260828239 is about 638.9274344661.

The spelling of 260828239 in words is "two hundred sixty million, eight hundred twenty-eight thousand, two hundred thirty-nine".