258485960 has 32 divisors (see below), whose sum is σ = 606882240. Its totient is φ = 98898624.

The previous prime is 258485957. The next prime is 258485963. The reversal of 258485960 is 69584852.

258485960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (258485957) and next prime (258485963).

It is not an unprimeable number, because it can be changed into a prime (258485963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139562 + ... + 141401.

It is an arithmetic number, because the mean of its divisors is an integer number (18965070).

Almost surely, 2^258485960 is an apocalyptic number.

258485960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258485960 is an abundant number, since it is smaller than the sum of its proper divisors (348396280).

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

258485960 is a wasteful number, since it uses less digits than its factorization.

258485960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280997 (or 280993 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The square root of 258485960 is about 16077.4985616544. The cubic root of 258485960 is about 637.0091241083.

The spelling of 258485960 in words is "two hundred fifty-eight million, four hundred eighty-five thousand, nine hundred sixty".