438464834 has 4 divisors (see below), whose sum is σ = 657697254. Its totient is φ = 219232416.

The previous prime is 438464821. The next prime is 438464839.

438464834 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 259306609 + 179158225 = 16103^2 + 13385^2 .

It is not an unprimeable number, because it can be changed into a prime (438464839) 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, 109616207 + ... + 109616210.

Almost surely, 2^438464834 is an apocalyptic number.

438464834 is a deficient number, since it is larger than the sum of its proper divisors (219232420).

438464834 is a wasteful number, since it uses less digits than its factorization.

438464834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219232419.

The product of its digits is 884736, while the sum is 44.

The square root of 438464834 is about 20939.5519054253. The cubic root of 438464834 is about 759.7048911948.

The spelling of 438464834 in words is "four hundred thirty-eight million, four hundred sixty-four thousand, eight hundred thirty-four".