258860020 has 96 divisors (see below), whose sum is σ = 597445632. Its totient is φ = 93831168.

The previous prime is 258859999. The next prime is 258860023. The reversal of 258860020 is 20068852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258860023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1549977 + ... + 1550143.

It is an arithmetic number, because the mean of its divisors is an integer number (6223392).

Almost surely, 2^258860020 is an apocalyptic number.

258860020 is a gapful number since it is divisible by the number (20) 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 258860020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298722816).

258860020 is an abundant number, since it is smaller than the sum of its proper divisors (338585612).

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

258860020 is a wasteful number, since it uses less digits than its factorization.

258860020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 258860020 is about 16089.1273846657. The cubic root of 258860020 is about 637.3162520539.

The spelling of 258860020 in words is "two hundred fifty-eight million, eight hundred sixty thousand, twenty".