260521378 has 32 divisors (see below), whose sum is σ = 428941296. Its totient is φ = 117946368.

The previous prime is 260521333. The next prime is 260521399. The reversal of 260521378 is 873125062.

It is a happy number.

260521378 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4297329 + 256224049 = 2073^2 + 16007^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601450 + ... + 601882.

Almost surely, 2^260521378 is an apocalyptic number.

260521378 is a deficient number, since it is larger than the sum of its proper divisors (168419918).

260521378 is a wasteful number, since it uses less digits than its factorization.

260521378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 260521378 is about 16140.6746451318. The cubic root of 260521378 is about 638.6767728933.

The spelling of 260521378 in words is "two hundred sixty million, five hundred twenty-one thousand, three hundred seventy-eight".