438323834 has 32 divisors (see below), whose sum is σ = 742331520. Its totient is φ = 192595392.

The previous prime is 438323819. The next prime is 438323839.

438323834 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (438323839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134132 + ... + 137360.

It is an arithmetic number, because the mean of its divisors is an integer number (23197860).

Almost surely, 2^438323834 is an apocalyptic number.

438323834 is a deficient number, since it is larger than the sum of its proper divisors (304007686).

438323834 is a wasteful number, since it uses less digits than its factorization.

438323834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494.

The product of its digits is 165888, while the sum is 38.

The square root of 438323834 is about 20936.1848004836. The cubic root of 438323834 is about 759.6234480431.

The spelling of 438323834 in words is "four hundred thirty-eight million, three hundred twenty-three thousand, eight hundred thirty-four".