259798590 has 192 divisors, whose sum is σ = 783095040. Its totient is φ = 61585920.

The previous prime is 259798541. The next prime is 259798613. The reversal of 259798590 is 95897952.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 784725 + ... + 785055.

It is an arithmetic number, because the mean of its divisors is an integer number (4078620).

Almost surely, 2^259798590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 259798590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391547520).

259798590 is an abundant number, since it is smaller than the sum of its proper divisors (523296450).

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

259798590 is a wasteful number, since it uses less digits than its factorization.

259798590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The square root of 259798590 is about 16118.2688276378. The cubic root of 259798590 is about 638.0855795946.

The spelling of 259798590 in words is "two hundred fifty-nine million, seven hundred ninety-eight thousand, five hundred ninety".