258705012 has 24 divisors (see below), whose sum is σ = 629891136. Its totient is φ = 82485568.

The previous prime is 258705011. The next prime is 258705017. The reversal of 258705012 is 210507852.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258705011) 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, 468393 + ... + 468944.

It is an arithmetic number, because the mean of its divisors is an integer number (26245464).

Almost surely, 2^258705012 is an apocalyptic number.

It is an amenable number.

258705012 is an abundant number, since it is smaller than the sum of its proper divisors (371186124).

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

258705012 is a wasteful number, since it uses less digits than its factorization.

258705012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937367 (or 937365 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 258705012 is about 16084.3094971466. The cubic root of 258705012 is about 637.1890161798.

The spelling of 258705012 in words is "two hundred fifty-eight million, seven hundred five thousand, twelve".