260340645 has 16 divisors (see below), whose sum is σ = 416782080. Its totient is φ = 138769344.

The previous prime is 260340631. The next prime is 260340649. The reversal of 260340645 is 546043062.

It is not a de Polignac number, because 260340645 - 2⁶ = 260340581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260340649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30511 + ... + 38099.

It is an arithmetic number, because the mean of its divisors is an integer number (26048880).

Almost surely, 2^260340645 is an apocalyptic number.

It is an amenable number.

260340645 is a deficient number, since it is larger than the sum of its proper divisors (156441435).

260340645 is a wasteful number, since it uses less digits than its factorization.

260340645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9884.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 260340645 is about 16135.0749920786. The cubic root of 260340645 is about 638.5290477520.

The spelling of 260340645 in words is "two hundred sixty million, three hundred forty thousand, six hundred forty-five".