260143240 has 32 divisors (see below), whose sum is σ = 668940480. Its totient is φ = 89191872.

The previous prime is 260143229. The next prime is 260143241. The reversal of 260143240 is 42341062.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (260143241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464262 + ... + 464821.

It is an arithmetic number, because the mean of its divisors is an integer number (20904390).

Almost surely, 2^260143240 is an apocalyptic number.

260143240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260143240 is an abundant number, since it is smaller than the sum of its proper divisors (408797240).

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

260143240 is a wasteful number, since it uses less digits than its factorization.

260143240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929101 (or 929097 counting only the distinct ones).

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

The square root of 260143240 is about 16128.9565688547. The cubic root of 260143240 is about 638.3676173318.

The spelling of 260143240 in words is "two hundred sixty million, one hundred forty-three thousand, two hundred forty".