259898730 has 256 divisors, whose sum is σ = 823689216. Its totient is φ = 51010560.

The previous prime is 259898729. The next prime is 259898747. The reversal of 259898730 is 37898952.

It is a super-2 number, since 2×259898730² = 135094699711225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3131269 + ... + 3131351.

It is an arithmetic number, because the mean of its divisors is an integer number (3217536).

Almost surely, 2^259898730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 259898730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411844608).

259898730 is an abundant number, since it is smaller than the sum of its proper divisors (563790486).

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

259898730 is a wasteful number, since it uses less digits than its factorization.

259898730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 259898730 is about 16121.3749413628. The cubic root of 259898730 is about 638.1675529441.

The spelling of 259898730 in words is "two hundred fifty-nine million, eight hundred ninety-eight thousand, seven hundred thirty".