259134940 has 12 divisors (see below), whose sum is σ = 544183416. Its totient is φ = 103653968.

The previous prime is 259134929. The next prime is 259134947. The reversal of 259134940 is 49431952.

It is a self number, because there is not a number n which added to its sum of digits gives 259134940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259134947) 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, 6478354 + ... + 6478393.

It is an arithmetic number, because the mean of its divisors is an integer number (45348618).

Almost surely, 2^259134940 is an apocalyptic number.

259134940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259134940 is an abundant number, since it is smaller than the sum of its proper divisors (285048476).

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

259134940 is a wasteful number, since it uses less digits than its factorization.

259134940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12956756 (or 12956754 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 259134940 is about 16097.6687753227. The cubic root of 259134940 is about 637.5417909295.

The spelling of 259134940 in words is "two hundred fifty-nine million, one hundred thirty-four thousand, nine hundred forty".