259646472 has 84 divisors (see below), whose sum is σ = 733397535. Its totient is φ = 86138640.

The previous prime is 259646467. The next prime is 259646479. The reversal of 259646472 is 274646952.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

259646472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 129823236 + 129823236 = 11394^2 + 11394^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=11394.

Its product of digits (725760) is a multiple of the sum of its prime divisors (216).

It is not an unprimeable number, because it can be changed into a prime (259646479) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 1230447 + ... + 1230657.

Almost surely, 2^259646472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 259646472

259646472 is an abundant number, since it is smaller than the sum of its proper divisors (473751063).

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

259646472 is an frugal number, since it uses more digits than its factorization.

259646472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 216 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 259646472 is about 16113.5493296790. The cubic root of 259646472 is about 637.9610173933.

The spelling of 259646472 in words is "two hundred fifty-nine million, six hundred forty-six thousand, four hundred seventy-two".