438619338 has 24 divisors (see below), whose sum is σ = 991662048. Its totient is φ = 139849512.

The previous prime is 438619333. The next prime is 438619339. The reversal of 438619338 is 833916834.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 438619293 and 438619302.

It is not an unprimeable number, because it can be changed into a prime (438619333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529320 + ... + 530147.

It is an arithmetic number, because the mean of its divisors is an integer number (41319252).

Almost surely, 2^438619338 is an apocalyptic number.

438619338 is an abundant number, since it is smaller than the sum of its proper divisors (553042710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438619338 is a wasteful number, since it uses less digits than its factorization.

438619338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059498 (or 1059495 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 438619338 is about 20943.2408666854. The cubic root of 438619338 is about 759.7941143594.

The spelling of 438619338 in words is "four hundred thirty-eight million, six hundred nineteen thousand, three hundred thirty-eight".