438234226 has 16 divisors (see below), whose sum is σ = 687398400. Its totient is φ = 209142208.

The previous prime is 438234217. The next prime is 438234271. The reversal of 438234226 is 622432834.

It is a junction number, because it is equal to n+sod(n) for n = 438234191 and 438234200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12090 + ... + 31978.

It is an arithmetic number, because the mean of its divisors is an integer number (42962400).

Almost surely, 2^438234226 is an apocalyptic number.

438234226 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

438234226 is a deficient number, since it is larger than the sum of its proper divisors (249164174).

438234226 is a wasteful number, since it uses less digits than its factorization.

438234226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20393.

The product of its digits is 55296, while the sum is 34.

The square root of 438234226 is about 20934.0446641350. The cubic root of 438234226 is about 759.5716803988.

The spelling of 438234226 in words is "four hundred thirty-eight million, two hundred thirty-four thousand, two hundred twenty-six".