6406229 has 4 divisors (see below), whose sum is σ = 6783084. Its totient is φ = 6029376.

The previous prime is 6406219. The next prime is 6406247. The reversal of 6406229 is 9226046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9226046 = 2 ⋅4613023.

It can be written as a sum of positive squares in 2 ways, for example, as 4831204 + 1575025 = 2198^2 + 1255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6406229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406219) 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, 188402 + ... + 188435.

It is an arithmetic number, because the mean of its divisors is an integer number (1695771).

Almost surely, 2^6406229 is an apocalyptic number.

It is an amenable number.

6406229 is a deficient number, since it is larger than the sum of its proper divisors (376855).

6406229 is a wasteful number, since it uses less digits than its factorization.

6406229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376854.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6406229 is about 2531.0529429469. The cubic root of 6406229 is about 185.7237680985.

The spelling of 6406229 in words is "six million, four hundred six thousand, two hundred twenty-nine".