260433578 has 4 divisors (see below), whose sum is σ = 390650370. Its totient is φ = 130216788.

The previous prime is 260433571. The next prime is 260433581. The reversal of 260433578 is 875334062.

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

It can be written as a sum of positive squares in only one way, i.e., 233570089 + 26863489 = 15283^2 + 5183^2 .

It is not an unprimeable number, because it can be changed into a prime (260433571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65108393 + ... + 65108396.

Almost surely, 2^260433578 is an apocalyptic number.

260433578 is a deficient number, since it is larger than the sum of its proper divisors (130216792).

260433578 is a wasteful number, since it uses less digits than its factorization.

260433578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130216791.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 260433578 is about 16137.9545791900. The cubic root of 260433578 is about 638.6050166306.

The spelling of 260433578 in words is "two hundred sixty million, four hundred thirty-three thousand, five hundred seventy-eight".