6223240 has 16 divisors (see below), whose sum is σ = 14002380. Its totient is φ = 2489280.

The previous prime is 6223211. The next prime is 6223247. The reversal of 6223240 is 423226.

It can be written as a sum of positive squares in 2 ways, for example, as 6041764 + 181476 = 2458^2 + 426^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6223247) by changing a digit.

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, 77751 + ... + 77830.

Almost surely, 2^6223240 is an apocalyptic number.

It is an amenable number.

6223240 is an abundant number, since it is smaller than the sum of its proper divisors (7779140).

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

6223240 is a wasteful number, since it uses less digits than its factorization.

6223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155592 (or 155588 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 6223240 is about 2494.6422589221. The cubic root of 6223240 is about 183.9383063491.

Adding to 6223240 its reverse (423226), we get a palindrome (6646466).

The spelling of 6223240 in words is "six million, two hundred twenty-three thousand, two hundred forty".