6458140 has 48 divisors (see below), whose sum is σ = 14888160. Its totient is φ = 2338560.

The previous prime is 6458117. The next prime is 6458159. The reversal of 6458140 is 418546.

It is a junction number, because it is equal to n+sod(n) for n = 6458099 and 6458108.

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, 15130 + ... + 15550.

It is an arithmetic number, because the mean of its divisors is an integer number (310170).

Almost surely, 2^6458140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6458140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7444080).

6458140 is an abundant number, since it is smaller than the sum of its proper divisors (8430020).

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

6458140 is a wasteful number, since it uses less digits than its factorization.

6458140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 6458140 is about 2541.2870754797. The cubic root of 6458140 is about 186.2240718828.

The spelling of 6458140 in words is "six million, four hundred fifty-eight thousand, one hundred forty".