258779016 has 32 divisors (see below), whose sum is σ = 718831200. Its totient is φ = 86259600.

The previous prime is 258779011. The next prime is 258779029. The reversal of 258779016 is 610977852.

It is not an unprimeable number, because it can be changed into a prime (258779011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598810 + ... + 599241.

It is an arithmetic number, because the mean of its divisors is an integer number (22463475).

Almost surely, 2^258779016 is an apocalyptic number.

It is an amenable number.

258779016 is an abundant number, since it is smaller than the sum of its proper divisors (460052184).

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

258779016 is a wasteful number, since it uses less digits than its factorization.

258779016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198066 (or 1198056 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 258779016 is about 16086.6098355123. The cubic root of 258779016 is about 637.2497675352.

The spelling of 258779016 in words is "two hundred fifty-eight million, seven hundred seventy-nine thousand, sixteen".