258935140 has 24 divisors (see below), whose sum is σ = 550650240. Its totient is φ = 102262368.

The previous prime is 258935137. The next prime is 258935141. The reversal of 258935140 is 41539852.

It is a self number, because there is not a number n which added to its sum of digits gives 258935140.

It is not an unprimeable number, because it can be changed into a prime (258935141) 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, 80362 + ... + 83521.

It is an arithmetic number, because the mean of its divisors is an integer number (22943760).

Almost surely, 2^258935140 is an apocalyptic number.

258935140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258935140 is an abundant number, since it is smaller than the sum of its proper divisors (291715100).

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

258935140 is a wasteful number, since it uses less digits than its factorization.

258935140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163971 (or 163969 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 258935140 is about 16091.4617111063. The cubic root of 258935140 is about 637.3778948504.

The spelling of 258935140 in words is "two hundred fifty-eight million, nine hundred thirty-five thousand, one hundred forty".