438619345 has 12 divisors (see below), whose sum is σ = 545124060. Its totient is φ = 338792384.

The previous prime is 438619343. The next prime is 438619367. The reversal of 438619345 is 543916834.

It can be written as a sum of positive squares in 6 ways, for example, as 30902481 + 407716864 = 5559^2 + 20192^2 .

It is not a de Polignac number, because 438619345 - 2¹ = 438619343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438619343) 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, 47950 + ... + 56359.

It is an arithmetic number, because the mean of its divisors is an integer number (45427005).

Almost surely, 2^438619345 is an apocalyptic number.

It is an amenable number.

438619345 is a deficient number, since it is larger than the sum of its proper divisors (106504715).

438619345 is a wasteful number, since it uses less digits than its factorization.

438619345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104372 (or 104343 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 438619345 is about 20943.2410338037. The cubic root of 438619345 is about 759.7941184013.

The spelling of 438619345 in words is "four hundred thirty-eight million, six hundred nineteen thousand, three hundred forty-five".