6221426 has 8 divisors (see below), whose sum is σ = 9386604. Its totient is φ = 3092560.

The previous prime is 6221377. The next prime is 6221429. The reversal of 6221426 is 6241226.

It can be written as a sum of positive squares in 2 ways, for example, as 4264225 + 1957201 = 2065^2 + 1399^2 .

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

It is a super-2 number, since 2×6221426² = 77412282946952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6221429) 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, 8645 + ... + 9336.

Almost surely, 2^6221426 is an apocalyptic number.

6221426 is a deficient number, since it is larger than the sum of its proper divisors (3165178).

6221426 is a wasteful number, since it uses less digits than its factorization.

6221426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18156.

The product of its digits is 1152, while the sum is 23.

The square root of 6221426 is about 2494.2786532382. The cubic root of 6221426 is about 183.9204326738.

It can be divided in two parts, 622 and 1426, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 6221426 in words is "six million, two hundred twenty-one thousand, four hundred twenty-six".