260256838 has 4 divisors (see below), whose sum is σ = 390385260. Its totient is φ = 130128418.

The previous prime is 260256827. The next prime is 260256839. The reversal of 260256838 is 838652062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 838652062 = 2 ⋅419326031.

It is a self number, because there is not a number n which added to its sum of digits gives 260256838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260256839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65064208 + ... + 65064211.

It is an arithmetic number, because the mean of its divisors is an integer number (97596315).

Almost surely, 2^260256838 is an apocalyptic number.

260256838 is a deficient number, since it is larger than the sum of its proper divisors (130128422).

260256838 is a wasteful number, since it uses less digits than its factorization.

260256838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130128421.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 260256838 is about 16132.4777390207. The cubic root of 260256838 is about 638.4605234959.

The spelling of 260256838 in words is "two hundred sixty million, two hundred fifty-six thousand, eight hundred thirty-eight".