259428078 has 96 divisors (see below), whose sum is σ = 695665152. Its totient is φ = 68040000.

The previous prime is 259428031. The next prime is 259428083. The reversal of 259428078 is 870824952.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410823 + ... + 411453.

It is an arithmetic number, because the mean of its divisors is an integer number (7246512).

Almost surely, 2^259428078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 259428078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347832576).

259428078 is an abundant number, since it is smaller than the sum of its proper divisors (436237074).

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

259428078 is a wasteful number, since it uses less digits than its factorization.

259428078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 259428078 is about 16106.7711848154. The cubic root of 259428078 is about 637.7820998325.

The spelling of 259428078 in words is "two hundred fifty-nine million, four hundred twenty-eight thousand, seventy-eight".