259869144 has 16 divisors (see below), whose sum is σ = 649672920. Its totient is φ = 86623040.

The previous prime is 259869143. The next prime is 259869161. The reversal of 259869144 is 441968952.

It is a junction number, because it is equal to n+sod(n) for n = 259869093 and 259869102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259869143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5413917 + ... + 5413964.

Almost surely, 2^259869144 is an apocalyptic number.

259869144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

259869144 is an abundant number, since it is smaller than the sum of its proper divisors (389803776).

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

259869144 is a wasteful number, since it uses less digits than its factorization.

259869144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10827890 (or 10827886 counting only the distinct ones).

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

The square root of 259869144 is about 16120.4573136124. The cubic root of 259869144 is about 638.1433364070.

The spelling of 259869144 in words is "two hundred fifty-nine million, eight hundred sixty-nine thousand, one hundred forty-four".