6618742 has 16 divisors (see below), whose sum is σ = 10755360. Its totient is φ = 3036672.

The previous prime is 6618739. The next prime is 6618751. The reversal of 6618742 is 2478166.

It is a junction number, because it is equal to n+sod(n) for n = 6618698 and 6618707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4359 + ... + 5677.

It is an arithmetic number, because the mean of its divisors is an integer number (672210).

Almost surely, 2^6618742 is an apocalyptic number.

6618742 is a deficient number, since it is larger than the sum of its proper divisors (4136618).

6618742 is a wasteful number, since it uses less digits than its factorization.

6618742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

The product of its digits is 16128, while the sum is 34.

The square root of 6618742 is about 2572.6915866462. The cubic root of 6618742 is about 187.7551323861.

The spelling of 6618742 in words is "six million, six hundred eighteen thousand, seven hundred forty-two".