6578742 has 24 divisors (see below), whose sum is σ = 13493304. Its totient is φ = 2138304.

The previous prime is 6578717. The next prime is 6578743. The reversal of 6578742 is 2478756.

It is a self number, because there is not a number n which added to its sum of digits gives 6578742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6578743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10798 + ... + 11390.

It is an arithmetic number, because the mean of its divisors is an integer number (562221).

Almost surely, 2^6578742 is an apocalyptic number.

6578742 is an abundant number, since it is smaller than the sum of its proper divisors (6914562).

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

6578742 is a wasteful number, since it uses less digits than its factorization.

6578742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 641 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 6578742 is about 2564.9058462252. The cubic root of 6578742 is about 187.3761386404.

The spelling of 6578742 in words is "six million, five hundred seventy-eight thousand, seven hundred forty-two".