260608638 has 32 divisors (see below), whose sum is σ = 536697216. Its totient is φ = 84315168.

The previous prime is 260608637. The next prime is 260608709. The reversal of 260608638 is 836806062.

It is a junction number, because it is equal to n+sod(n) for n = 260608596 and 260608605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260608631) 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, 38956 + ... + 45152.

It is an arithmetic number, because the mean of its divisors is an integer number (16771788).

Almost surely, 2^260608638 is an apocalyptic number.

260608638 is an abundant number, since it is smaller than the sum of its proper divisors (276088578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260608638 is a wasteful number, since it uses less digits than its factorization.

260608638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 260608638 is about 16143.3775276427. The cubic root of 260608638 is about 638.7480718587.

The spelling of 260608638 in words is "two hundred sixty million, six hundred eight thousand, six hundred thirty-eight".