259386140 has 48 divisors (see below), whose sum is σ = 588258720. Its totient is φ = 95504640.

The previous prime is 259386109. The next prime is 259386167. The reversal of 259386140 is 41683952.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 259386094 and 259386103.

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, 107750 + ... + 110130.

It is an arithmetic number, because the mean of its divisors is an integer number (12255390).

Almost surely, 2^259386140 is an apocalyptic number.

259386140 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 259386140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294129360).

259386140 is an abundant number, since it is smaller than the sum of its proper divisors (328872580).

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

259386140 is a wasteful number, since it uses less digits than its factorization.

259386140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 2820 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 259386140 is about 16105.4692573672. The cubic root of 259386140 is about 637.7477309658.

The spelling of 259386140 in words is "two hundred fifty-nine million, three hundred eighty-six thousand, one hundred forty".