260171240 has 128 divisors (see below), whose sum is σ = 694552320. Its totient is φ = 85862400.

The previous prime is 260171227. The next prime is 260171257. The reversal of 260171240 is 42171062.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1503794 + ... + 1503966.

It is an arithmetic number, because the mean of its divisors is an integer number (5426190).

Almost surely, 2^260171240 is an apocalyptic number.

260171240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260171240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347276160).

260171240 is an abundant number, since it is smaller than the sum of its proper divisors (434381080).

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

260171240 is a wasteful number, since it uses less digits than its factorization.

260171240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 260171240 is about 16129.8245495728. The cubic root of 260171240 is about 638.3905196529.

The spelling of 260171240 in words is "two hundred sixty million, one hundred seventy-one thousand, two hundred forty".