260040247 has 8 divisors (see below), whose sum is σ = 262455296. Its totient is φ = 257631192.

The previous prime is 260040241. The next prime is 260040259. The reversal of 260040247 is 742040062.

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

It is a cyclic number.

It is not a de Polignac number, because 260040247 - 2⁷ = 260040119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260040241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167758 + ... + 169300.

It is an arithmetic number, because the mean of its divisors is an integer number (32806912).

Almost surely, 2^260040247 is an apocalyptic number.

260040247 is a deficient number, since it is larger than the sum of its proper divisors (2415049).

260040247 is a wasteful number, since it uses less digits than its factorization.

260040247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 260040247 is about 16125.7634547949. The cubic root of 260040247 is about 638.2833610908.

The spelling of 260040247 in words is "two hundred sixty million, forty thousand, two hundred forty-seven".