6340442 has 8 divisors (see below), whose sum is σ = 9644832. Its totient is φ = 3125500.

The previous prime is 6340429. The next prime is 6340457. The reversal of 6340442 is 2440436.

It is a happy number.

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

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 in 3 ways as a sum of consecutive naturals, for example, 22184 + ... + 22467.

It is an arithmetic number, because the mean of its divisors is an integer number (1205604).

Almost surely, 2^6340442 is an apocalyptic number.

6340442 is a deficient number, since it is larger than the sum of its proper divisors (3304390).

6340442 is a wasteful number, since it uses less digits than its factorization.

6340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44724.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 6340442 is about 2518.0234311857. The cubic root of 6340442 is about 185.0858330704.

Adding to 6340442 its reverse (2440436), we get a palindrome (8780878).

The spelling of 6340442 in words is "six million, three hundred forty thousand, four hundred forty-two".