258436216 has 16 divisors (see below), whose sum is σ = 484875000. Its totient is φ = 129136224.

The previous prime is 258436183. The next prime is 258436229. The reversal of 258436216 is 612634852.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4410 + ... + 23158.

Almost surely, 2^258436216 is an apocalyptic number.

It is an amenable number.

258436216 is a deficient number, since it is larger than the sum of its proper divisors (226438784).

258436216 is a wasteful number, since it uses less digits than its factorization.

258436216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20478 (or 20474 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 258436216 is about 16075.9514803946. The cubic root of 258436216 is about 636.9682586847.

The spelling of 258436216 in words is "two hundred fifty-eight million, four hundred thirty-six thousand, two hundred sixteen".