258147730 has 32 divisors (see below), whose sum is σ = 475884720. Its totient is φ = 100792320.

The previous prime is 258147719. The next prime is 258147731. The reversal of 258147730 is 37741852.

It can be written as a sum of positive squares in 8 ways, for example, as 108305649 + 149842081 = 10407^2 + 12241^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 258147730.

It is not an unprimeable number, because it can be changed into a prime (258147731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82026 + ... + 85114.

Almost surely, 2^258147730 is an apocalyptic number.

258147730 is a deficient number, since it is larger than the sum of its proper divisors (217736990).

258147730 is a wasteful number, since it uses less digits than its factorization.

258147730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 258147730 is about 16066.9763801407. The cubic root of 258147730 is about 636.7311597664.

The spelling of 258147730 in words is "two hundred fifty-eight million, one hundred forty-seven thousand, seven hundred thirty".