260368387 has 4 divisors (see below), whose sum is σ = 261717640. Its totient is φ = 259019136.

The previous prime is 260368373. The next prime is 260368421. The reversal of 260368387 is 783863062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783863062 = 2 ⋅391931531.

It is a cyclic number.

It is not a de Polignac number, because 260368387 - 2⁷ = 260368259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260368307) 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, 674337 + ... + 674722.

It is an arithmetic number, because the mean of its divisors is an integer number (65429410).

Almost surely, 2^260368387 is an apocalyptic number.

260368387 is a deficient number, since it is larger than the sum of its proper divisors (1349253).

260368387 is a wasteful number, since it uses less digits than its factorization.

260368387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349252.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 260368387 is about 16135.9346490992. The cubic root of 260368387 is about 638.5517275807.

The spelling of 260368387 in words is "two hundred sixty million, three hundred sixty-eight thousand, three hundred eighty-seven".