260187387 has 16 divisors (see below), whose sum is σ = 371166720. Its totient is φ = 161632800.

The previous prime is 260187379. The next prime is 260187401. The reversal of 260187387 is 783781062.

It is not a de Polignac number, because 260187387 - 2³ = 260187379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260187307) 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, 33939 + ... + 40892.

It is an arithmetic number, because the mean of its divisors is an integer number (23197920).

Almost surely, 2^260187387 is an apocalyptic number.

260187387 is a deficient number, since it is larger than the sum of its proper divisors (110979333).

260187387 is a wasteful number, since it uses less digits than its factorization.

260187387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74914.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 260187387 is about 16130.3250742197. The cubic root of 260187387 is about 638.4037261836.

The spelling of 260187387 in words is "two hundred sixty million, one hundred eighty-seven thousand, three hundred eighty-seven".