6340742 has 4 divisors (see below), whose sum is σ = 9511116. Its totient is φ = 3170370.

The previous prime is 6340739. The next prime is 6340757. The reversal of 6340742 is 2470436.

It is a happy number.

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

It is a super-2 number, since 2×6340742² = 80410018221128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1585184 + ... + 1585187.

It is an arithmetic number, because the mean of its divisors is an integer number (2377779).

Almost surely, 2^6340742 is an apocalyptic number.

6340742 is a deficient number, since it is larger than the sum of its proper divisors (3170374).

6340742 is a wasteful number, since it uses less digits than its factorization.

6340742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170373.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 6340742 is about 2518.0830010149. The cubic root of 6340742 is about 185.0887521558.

The spelling of 6340742 in words is "six million, three hundred forty thousand, seven hundred forty-two".