258671140 has 96 divisors (see below), whose sum is σ = 672182784. Its totient is φ = 81423360.

The previous prime is 258671137. The next prime is 258671177. The reversal of 258671140 is 41176852.

It is a junction number, because it is equal to n+sod(n) for n = 258671096 and 258671105.

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, 565792 + ... + 566248.

It is an arithmetic number, because the mean of its divisors is an integer number (7001904).

Almost surely, 2^258671140 is an apocalyptic number.

258671140 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 258671140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336091392).

258671140 is an abundant number, since it is smaller than the sum of its proper divisors (413511644).

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

258671140 is a wasteful number, since it uses less digits than its factorization.

258671140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 258671140 is about 16083.2565110428. The cubic root of 258671140 is about 637.1612061163.

The spelling of 258671140 in words is "two hundred fifty-eight million, six hundred seventy-one thousand, one hundred forty".