6742742 has 4 divisors (see below), whose sum is σ = 10114116. Its totient is φ = 3371370.

The previous prime is 6742733. The next prime is 6742753. The reversal of 6742742 is 2472476.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 6742699 and 6742708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1685684 + ... + 1685687.

It is an arithmetic number, because the mean of its divisors is an integer number (2528529).

Almost surely, 2^6742742 is an apocalyptic number.

6742742 is a deficient number, since it is larger than the sum of its proper divisors (3371374).

6742742 is a wasteful number, since it uses less digits than its factorization.

6742742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371373.

The product of its digits is 18816, while the sum is 32.

The square root of 6742742 is about 2596.6790329188. The cubic root of 6742742 is about 188.9203961027.

The spelling of 6742742 in words is "six million, seven hundred forty-two thousand, seven hundred forty-two".