260522978 has 12 divisors (see below), whose sum is σ = 408515478. Its totient is φ = 124597440.

The previous prime is 260522959. The next prime is 260522981. The reversal of 260522978 is 879225062.

It can be written as a sum of positive squares in only one way, i.e., 138133009 + 122389969 = 11753^2 + 11063^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122063 + ... + 124178.

Almost surely, 2^260522978 is an apocalyptic number.

260522978 is a deficient number, since it is larger than the sum of its proper divisors (147992500).

260522978 is a wasteful number, since it uses less digits than its factorization.

260522978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246289 (or 246266 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 260522978 is about 16140.7242092788. The cubic root of 260522978 is about 638.6780803750.

The spelling of 260522978 in words is "two hundred sixty million, five hundred twenty-two thousand, nine hundred seventy-eight".