259889340 has 24 divisors (see below), whose sum is σ = 727690320. Its totient is φ = 69303808.

The previous prime is 259889321. The next prime is 259889363. The reversal of 259889340 is 43988952.

It is a self number, because there is not a number n which added to its sum of digits gives 259889340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2165685 + ... + 2165804.

It is an arithmetic number, because the mean of its divisors is an integer number (30320430).

Almost surely, 2^259889340 is an apocalyptic number.

259889340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259889340 is an abundant number, since it is smaller than the sum of its proper divisors (467800980).

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

259889340 is a wasteful number, since it uses less digits than its factorization.

259889340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331501 (or 4331499 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 259889340 is about 16121.0837104706. The cubic root of 259889340 is about 638.1598673024.

The spelling of 259889340 in words is "two hundred fifty-nine million, eight hundred eighty-nine thousand, three hundred forty".