6403242 has 8 divisors (see below), whose sum is σ = 12806496. Its totient is φ = 2134412.

The previous prime is 6403219. The next prime is 6403273. The reversal of 6403242 is 2423046.

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

6403242 is an admirable number.

It is a super-2 number, since 2×6403242² = 82003016221128, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 533598 + ... + 533609.

It is an arithmetic number, because the mean of its divisors is an integer number (1600812).

Almost surely, 2^6403242 is an apocalyptic number.

6403242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6403242 is a wasteful number, since it uses less digits than its factorization.

6403242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067212.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 6403242 is about 2530.4628035203. The cubic root of 6403242 is about 185.6948981170.

Adding to 6403242 its reverse (2423046), we get a palindrome (8826288).

The spelling of 6403242 in words is "six million, four hundred three thousand, two hundred forty-two".