259492878 has 24 divisors (see below), whose sum is σ = 580372416. Its totient is φ = 83707200.

The previous prime is 259492867. The next prime is 259492889. The reversal of 259492878 is 878294952.

It is an interprime number because it is at equal distance from previous prime (259492867) and next prime (259492889).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231963 + ... + 233078.

It is an arithmetic number, because the mean of its divisors is an integer number (24182184).

Almost surely, 2^259492878 is an apocalyptic number.

259492878 is an abundant number, since it is smaller than the sum of its proper divisors (320879538).

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

259492878 is a wasteful number, since it uses less digits than its factorization.

259492878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465080 (or 465077 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 259492878 is about 16108.7826355687. The cubic root of 259492878 is about 637.8351971943.

The spelling of 259492878 in words is "two hundred fifty-nine million, four hundred ninety-two thousand, eight hundred seventy-eight".