258836430 has 64 divisors (see below), whose sum is σ = 655868160. Its totient is φ = 65193984.

The previous prime is 258836401. The next prime is 258836467. The reversal of 258836430 is 34638852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 328497 + ... + 329283.

It is an arithmetic number, because the mean of its divisors is an integer number (10247940).

Almost surely, 2^258836430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258836430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327934080).

258836430 is an abundant number, since it is smaller than the sum of its proper divisors (397031730).

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

258836430 is a wasteful number, since it uses less digits than its factorization.

258836430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 258836430 is about 16088.3942641893. The cubic root of 258836430 is about 637.2968918516.

The spelling of 258836430 in words is "two hundred fifty-eight million, eight hundred thirty-six thousand, four hundred thirty".