259801944 has 16 divisors (see below), whose sum is σ = 649504920. Its totient is φ = 86600640.

The previous prime is 259801943. The next prime is 259801967. The reversal of 259801944 is 449108952.

It is a junction number, because it is equal to n+sod(n) for n = 259801896 and 259801905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259801943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5412517 + ... + 5412564.

Almost surely, 2^259801944 is an apocalyptic number.

259801944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

259801944 is an abundant number, since it is smaller than the sum of its proper divisors (389702976).

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

259801944 is a wasteful number, since it uses less digits than its factorization.

259801944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10825090 (or 10825086 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 259801944 is about 16118.3728707336. The cubic root of 259801944 is about 638.0883254779.

The spelling of 259801944 in words is "two hundred fifty-nine million, eight hundred one thousand, nine hundred forty-four".