260672643 has 48 divisors (see below), whose sum is σ = 470995200. Its totient is φ = 134965440.

The previous prime is 260672641. The next prime is 260672663. The reversal of 260672643 is 346276062.

It is a happy number.

260672643 is a `hidden beast` number, since 2 + 6 + 0 + 6 + 7 + 2 + 643 = 666.

It is not a de Polignac number, because 260672643 - 2¹ = 260672641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 260672598 and 260672607.

It is not an unprimeable number, because it can be changed into a prime (260672641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 352368 + ... + 353106.

It is an arithmetic number, because the mean of its divisors is an integer number (9812400).

Almost surely, 2^260672643 is an apocalyptic number.

260672643 is a deficient number, since it is larger than the sum of its proper divisors (210322557).

260672643 is a wasteful number, since it uses less digits than its factorization.

260672643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 260672643 is about 16145.3597977871. The cubic root of 260672643 is about 638.8003593605.

The spelling of 260672643 in words is "two hundred sixty million, six hundred seventy-two thousand, six hundred forty-three".