260978570 has 8 divisors (see below), whose sum is σ = 469761444. Its totient is φ = 104391424.

The previous prime is 260978513. The next prime is 260978579. The reversal of 260978570 is 75879062.

It can be written as a sum of positive squares in 2 ways, for example, as 255328441 + 5650129 = 15979^2 + 2377^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (260978579) 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, 13048919 + ... + 13048938.

Almost surely, 2^260978570 is an apocalyptic number.

260978570 is a deficient number, since it is larger than the sum of its proper divisors (208782874).

260978570 is a wasteful number, since it uses less digits than its factorization.

260978570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26097864.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 260978570 is about 16154.8311659392. The cubic root of 260978570 is about 639.0501616590.

The spelling of 260978570 in words is "two hundred sixty million, nine hundred seventy-eight thousand, five hundred seventy".