258726216 has 64 divisors (see below), whose sum is σ = 740419200. Its totient is φ = 73801728.

The previous prime is 258726203. The next prime is 258726233. The reversal of 258726216 is 612627852.

258726216 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182920 + ... + 184328.

It is an arithmetic number, because the mean of its divisors is an integer number (11569050).

Almost surely, 2^258726216 is an apocalyptic number.

It is an amenable number.

258726216 is an abundant number, since it is smaller than the sum of its proper divisors (481692984).

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

258726216 is a wasteful number, since it uses less digits than its factorization.

258726216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518 (or 2514 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 258726216 is about 16084.9686353440. The cubic root of 258726216 is about 637.2064241491.

The spelling of 258726216 in words is "two hundred fifty-eight million, seven hundred twenty-six thousand, two hundred sixteen".