6438922 has 8 divisors (see below), whose sum is σ = 11038176. Its totient is φ = 2759532.

The previous prime is 6438911. The next prime is 6438923. The reversal of 6438922 is 2298346.

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

It is a d-powerful number, because it can be written as 6⁵ + 4¹¹ + 3⁸ + 8⁷ + 9 + 2¹¹ + 2¹⁷ .

It is not an unprimeable number, because it can be changed into a prime (6438923) 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, 229948 + ... + 229975.

It is an arithmetic number, because the mean of its divisors is an integer number (1379772).

Almost surely, 2^6438922 is an apocalyptic number.

6438922 is a deficient number, since it is larger than the sum of its proper divisors (4599254).

6438922 is a wasteful number, since it uses less digits than its factorization.

6438922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459932.

The product of its digits is 20736, while the sum is 34.

The square root of 6438922 is about 2537.5031034464. The cubic root of 6438922 is about 186.0391677641.

The spelling of 6438922 in words is "six million, four hundred thirty-eight thousand, nine hundred twenty-two".