260620240 has 20 divisors (see below), whose sum is σ = 605942244. Its totient is φ = 104248064.

The previous prime is 260620201. The next prime is 260620247. The reversal of 260620240 is 42026062.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111682624 + 148937616 = 10568^2 + 12204^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×260620240³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260620247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628797 + ... + 1628956.

Almost surely, 2^260620240 is an apocalyptic number.

260620240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260620240 is an abundant number, since it is smaller than the sum of its proper divisors (345322004).

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

260620240 is a wasteful number, since it uses less digits than its factorization.

260620240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257766 (or 3257760 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 260620240 is about 16143.7368660419. The cubic root of 260620240 is about 638.7575504971.

The spelling of 260620240 in words is "two hundred sixty million, six hundred twenty thousand, two hundred forty".