258239712 has 24 divisors (see below), whose sum is σ = 677879496. Its totient is φ = 86079872.

The previous prime is 258239669. The next prime is 258239717. The reversal of 258239712 is 217932852.

258239712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258239717) 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, 1344903 + ... + 1345094.

It is an arithmetic number, because the mean of its divisors is an integer number (28244979).

Almost surely, 2^258239712 is an apocalyptic number.

It is an amenable number.

258239712 is an abundant number, since it is smaller than the sum of its proper divisors (419639784).

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

258239712 is a wasteful number, since it uses less digits than its factorization.

258239712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690010 (or 2690002 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 258239712 is about 16069.8385803965. The cubic root of 258239712 is about 636.8067764824.

The spelling of 258239712 in words is "two hundred fifty-eight million, two hundred thirty-nine thousand, seven hundred twelve".