6402241 has 8 divisors (see below), whose sum is σ = 6586920. Its totient is φ = 6220032.

The previous prime is 6402203. The next prime is 6402247. The reversal of 6402241 is 1422046.

It can be written as a sum of positive squares in 4 ways, for example, as 172225 + 6230016 = 415^2 + 2496^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6402241 - 2¹¹ = 6400193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6402247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5455 + ... + 6523.

It is an arithmetic number, because the mean of its divisors is an integer number (823365).

Almost surely, 2^6402241 is an apocalyptic number.

It is an amenable number.

6402241 is a deficient number, since it is larger than the sum of its proper divisors (184679).

6402241 is a wasteful number, since it uses less digits than its factorization.

6402241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 6402241 is about 2530.2650058838. The cubic root of 6402241 is about 185.6852212335.

Adding to 6402241 its reverse (1422046), we get a palindrome (7824287).

The spelling of 6402241 in words is "six million, four hundred two thousand, two hundred forty-one".