259444920 has 128 divisors (see below), whose sum is σ = 901923840. Its totient is φ = 58475520.

The previous prime is 259444907. The next prime is 259444951. The reversal of 259444920 is 29444952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59205 + ... + 63435.

It is an arithmetic number, because the mean of its divisors is an integer number (7046280).

Almost surely, 2^259444920 is an apocalyptic number.

259444920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 259444920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450961920).

259444920 is an abundant number, since it is smaller than the sum of its proper divisors (642478920).

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

259444920 is a wasteful number, since it uses less digits than its factorization.

259444920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325 (or 4321 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 259444920 is about 16107.2939999244. The cubic root of 259444920 is about 637.7959010805.

The spelling of 259444920 in words is "two hundred fifty-nine million, four hundred forty-four thousand, nine hundred twenty".