260858401 has 4 divisors (see below), whose sum is σ = 261076804. Its totient is φ = 260640000.

The previous prime is 260858371. The next prime is 260858407. The reversal of 260858401 is 104858062.

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

It can be written as a sum of positive squares in 2 ways, for example, as 358801 + 260499600 = 599^2 + 16140^2 .

It is a cyclic number.

It is not a de Polignac number, because 260858401 - 2⁹ = 260857889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260858407) 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, 107400 + ... + 109801.

It is an arithmetic number, because the mean of its divisors is an integer number (65269201).

Almost surely, 2^260858401 is an apocalyptic number.

It is an amenable number.

260858401 is a deficient number, since it is larger than the sum of its proper divisors (218403).

260858401 is a wasteful number, since it uses less digits than its factorization.

260858401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218402.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 260858401 is about 16151.1114478230. Note that the first 3 decimals coincide. The cubic root of 260858401 is about 638.9520618947.

It can be divided in two parts, 2608 and 58401, that added together give a square (61009 = 247²).

The spelling of 260858401 in words is "two hundred sixty million, eight hundred fifty-eight thousand, four hundred one".