258012140 has 48 divisors (see below), whose sum is σ = 560189952. Its totient is φ = 99761856.

The previous prime is 258012121. The next prime is 258012151. The reversal of 258012140 is 41210852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76367 + ... + 79673.

It is an arithmetic number, because the mean of its divisors is an integer number (11670624).

Almost surely, 2^258012140 is an apocalyptic number.

258012140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258012140 is an abundant number, since it is smaller than the sum of its proper divisors (302177812).

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

258012140 is a wasteful number, since it uses less digits than its factorization.

258012140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446 (or 3444 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 258012140 is about 16062.7563014571. The cubic root of 258012140 is about 636.6196609516.

Adding to 258012140 its reverse (41210852), we get a palindrome (299222992).

The spelling of 258012140 in words is "two hundred fifty-eight million, twelve thousand, one hundred forty".