258299064 has 64 divisors (see below), whose sum is σ = 719712000. Its totient is φ = 85834080.

The previous prime is 258299033. The next prime is 258299087. The reversal of 258299064 is 460992852.

258299064 is a `hidden beast` number, since 2 + 582 + 9 + 9 + 0 + 64 = 666.

It is a congruent number.

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, 75879 + ... + 79209.

It is an arithmetic number, because the mean of its divisors is an integer number (11245500).

Almost surely, 2^258299064 is an apocalyptic number.

258299064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258299064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359856000).

258299064 is an abundant number, since it is smaller than the sum of its proper divisors (461412936).

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

258299064 is a wasteful number, since it uses less digits than its factorization.

258299064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 258299064 is about 16071.6851636659. The cubic root of 258299064 is about 636.8555591429.

The spelling of 258299064 in words is "two hundred fifty-eight million, two hundred ninety-nine thousand, sixty-four".