260521140 has 48 divisors (see below), whose sum is σ = 795775680. Its totient is φ = 63156480.

The previous prime is 260521127. The next prime is 260521153. The reversal of 260521140 is 41125062.

It is an interprime number because it is at equal distance from previous prime (260521127) and next prime (260521153).

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, 196705 + ... + 198024.

It is an arithmetic number, because the mean of its divisors is an integer number (16578660).

Almost surely, 2^260521140 is an apocalyptic number.

260521140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260521140 is an abundant number, since it is smaller than the sum of its proper divisors (535254540).

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

260521140 is a wasteful number, since it uses less digits than its factorization.

260521140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394752 (or 394750 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 260521140 is about 16140.6672724519. The cubic root of 260521140 is about 638.6765784050.

The spelling of 260521140 in words is "two hundred sixty million, five hundred twenty-one thousand, one hundred forty".