6430238 has 4 divisors (see below), whose sum is σ = 9645360. Its totient is φ = 3215118.

The previous prime is 6430231. The next prime is 6430241. The reversal of 6430238 is 8320346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8320346 = 2 ⋅4160173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6430231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607558 + ... + 1607561.

It is an arithmetic number, because the mean of its divisors is an integer number (2411340).

Almost surely, 2^6430238 is an apocalyptic number.

6430238 is a deficient number, since it is larger than the sum of its proper divisors (3215122).

6430238 is a wasteful number, since it uses less digits than its factorization.

6430238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215121.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6430238 is about 2535.7913952058. The cubic root of 6430238 is about 185.9554948053.

The spelling of 6430238 in words is "six million, four hundred thirty thousand, two hundred thirty-eight".