260482639 has 4 divisors (see below), whose sum is σ = 262080856. Its totient is φ = 258884424.

The previous prime is 260482633. The next prime is 260482661. The reversal of 260482639 is 936284062.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 260482639 - 2⁹ = 260482127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260482633) 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, 798864 + ... + 799189.

It is an arithmetic number, because the mean of its divisors is an integer number (65520214).

Almost surely, 2^260482639 is an apocalyptic number.

260482639 is a deficient number, since it is larger than the sum of its proper divisors (1598217).

260482639 is a wasteful number, since it uses less digits than its factorization.

260482639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598216.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 260482639 is about 16139.4745577420. The cubic root of 260482639 is about 638.6451146776.

It can be divided in two parts, 260482 and 639, that added together give a square (261121 = 511²).

The spelling of 260482639 in words is "two hundred sixty million, four hundred eighty-two thousand, six hundred thirty-nine".