6309742 has 4 divisors (see below), whose sum is σ = 9464616. Its totient is φ = 3154870.

The previous prime is 6309739. The next prime is 6309757. The reversal of 6309742 is 2479036.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577434 + ... + 1577437.

It is an arithmetic number, because the mean of its divisors is an integer number (2366154).

Almost surely, 2^6309742 is an apocalyptic number.

6309742 is a deficient number, since it is larger than the sum of its proper divisors (3154874).

6309742 is a wasteful number, since it uses less digits than its factorization.

6309742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154873.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 6309742 is about 2511.9199828020. The cubic root of 6309742 is about 184.7866251885.

The spelling of 6309742 in words is "six million, three hundred nine thousand, seven hundred forty-two".