260780895 has 24 divisors (see below), whose sum is σ = 454401792. Its totient is φ = 138350400.

The previous prime is 260780881. The next prime is 260780899. The reversal of 260780895 is 598087062.

It is not a de Polignac number, because 260780895 - 2²² = 256586591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 260780895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260780899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6576 + ... + 23765.

It is an arithmetic number, because the mean of its divisors is an integer number (18933408).

Almost surely, 2^260780895 is an apocalyptic number.

260780895 is a deficient number, since it is larger than the sum of its proper divisors (193620897).

260780895 is a wasteful number, since it uses less digits than its factorization.

260780895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30543 (or 30540 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 260780895 is about 16148.7118681336. The cubic root of 260780895 is about 638.8887740166. Note that the first 3 decimals are identical.

The spelling of 260780895 in words is "two hundred sixty million, seven hundred eighty thousand, eight hundred ninety-five".