259740 has 96 divisors (see below), whose sum is σ = 893760. Its totient is φ = 62208.

The previous prime is 259733. The next prime is 259751. The reversal of 259740 is 47952.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7002 + ... + 7038.

It is an arithmetic number, because the mean of its divisors is an integer number (9310).

2²⁵⁹⁷⁴⁰ is an apocalyptic number.

259740 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 259740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446880).

259740 is an abundant number, since it is smaller than the sum of its proper divisors (634020).

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

259740 is a wasteful number, since it uses less digits than its factorization.

259740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 259740 is about 509.6469366140. The cubic root of 259740 is about 63.8037608787.

It can be divided in two parts, 259 and 740, that added together give a palindrome (999).

The spelling of 259740 in words is "two hundred fifty-nine thousand, seven hundred forty".