260906240 has 144 divisors (see below), whose sum is σ = 734466432. Its totient is φ = 86925312.

The previous prime is 260906221. The next prime is 260906263. The reversal of 260906240 is 42609062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331127 + ... + 331913.

Almost surely, 2^260906240 is an apocalyptic number.

260906240 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 260906240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367233216).

260906240 is an abundant number, since it is smaller than the sum of its proper divisors (473560192).

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

260906240 is an equidigital number, since it uses as much as digits as its factorization.

260906240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 260906240 is about 16152.5923615994. The cubic root of 260906240 is about 638.9911187920.

The spelling of 260906240 in words is "two hundred sixty million, nine hundred six thousand, two hundred forty".