259307240 has 32 divisors (see below), whose sum is σ = 585528480. Its totient is φ = 103351872.

The previous prime is 259307177. The next prime is 259307249. The reversal of 259307240 is 42703952.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 259307197 and 259307206.

It is not an unprimeable number, because it can be changed into a prime (259307249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (18297765).

Almost surely, 2^259307240 is an apocalyptic number.

259307240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259307240 is an abundant number, since it is smaller than the sum of its proper divisors (326221240).

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

259307240 is a wasteful number, since it uses less digits than its factorization.

259307240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23201 (or 23197 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 259307240 is about 16103.0195926106. The cubic root of 259307240 is about 637.6830611023.

The spelling of 259307240 in words is "two hundred fifty-nine million, three hundred seven thousand, two hundred forty".