260673840 has 120 divisors (see below), whose sum is σ = 1000510368. Its totient is φ = 59581440.

The previous prime is 260673839. The next prime is 260673871. The reversal of 260673840 is 48376062.

260673840 is a `hidden beast` number, since 2 + 606 + 7 + 3 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 260673795 and 260673804.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20821 + ... + 30900.

Almost surely, 2^260673840 is an apocalyptic number.

260673840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260673840 is an abundant number, since it is smaller than the sum of its proper divisors (739836528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260673840 is a wasteful number, since it uses less digits than its factorization.

260673840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51747 (or 51738 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 260673840 is about 16145.3968672188. The cubic root of 260673840 is about 638.8013371422.

The spelling of 260673840 in words is "two hundred sixty million, six hundred seventy-three thousand, eight hundred forty".