258172270 has 8 divisors (see below), whose sum is σ = 464710104. Its totient is φ = 103268904.

The previous prime is 258172267. The next prime is 258172279. The reversal of 258172270 is 72271852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258172279) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12908604 + ... + 12908623.

It is an arithmetic number, because the mean of its divisors is an integer number (58088763).

Almost surely, 2^258172270 is an apocalyptic number.

258172270 is a deficient number, since it is larger than the sum of its proper divisors (206537834).

258172270 is a wasteful number, since it uses less digits than its factorization.

258172270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25817234.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 258172270 is about 16067.7400402172. The cubic root of 258172270 is about 636.7513354071.

The spelling of 258172270 in words is "two hundred fifty-eight million, one hundred seventy-two thousand, two hundred seventy".