6224138 has 4 divisors (see below), whose sum is σ = 9336210. Its totient is φ = 3112068.

The previous prime is 6224137. The next prime is 6224171. The reversal of 6224138 is 8314226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5257849 + 966289 = 2293^2 + 983^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6224131) 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 as a sum of consecutive naturals, namely, 1556033 + ... + 1556036.

Almost surely, 2^6224138 is an apocalyptic number.

6224138 is a deficient number, since it is larger than the sum of its proper divisors (3112072).

6224138 is a wasteful number, since it uses less digits than its factorization.

6224138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112071.

The product of its digits is 2304, while the sum is 26.

The square root of 6224138 is about 2494.8222381565. The cubic root of 6224138 is about 183.9471532228.

The spelling of 6224138 in words is "six million, two hundred twenty-four thousand, one hundred thirty-eight".