258226238 has 16 divisors (see below), whose sum is σ = 390830400. Its totient is φ = 127953696.

The previous prime is 258226217. The next prime is 258226247. The reversal of 258226238 is 832622852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193931 + ... + 195257.

It is an arithmetic number, because the mean of its divisors is an integer number (24426900).

Almost surely, 2^258226238 is an apocalyptic number.

258226238 is a deficient number, since it is larger than the sum of its proper divisors (132604162).

258226238 is a wasteful number, since it uses less digits than its factorization.

258226238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its digits is 92160, while the sum is 38.

The square root of 258226238 is about 16069.4193423409. The cubic root of 258226238 is about 636.7957008766.

The spelling of 258226238 in words is "two hundred fifty-eight million, two hundred twenty-six thousand, two hundred thirty-eight".