6842390 has 8 divisors (see below), whose sum is σ = 12316320. Its totient is φ = 2736952.

The previous prime is 6842387. The next prime is 6842399. The reversal of 6842390 is 932486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6842399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342110 + ... + 342129.

It is an arithmetic number, because the mean of its divisors is an integer number (1539540).

Almost surely, 2^6842390 is an apocalyptic number.

6842390 is a deficient number, since it is larger than the sum of its proper divisors (5473930).

6842390 is a wasteful number, since it uses less digits than its factorization.

6842390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684246.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 6842390 is about 2615.7962458877. The cubic root of 6842390 is about 189.8465057631.

The spelling of 6842390 in words is "six million, eight hundred forty-two thousand, three hundred ninety".