438043339 has 2 divisors, whose sum is σ = 438043340. Its totient is φ = 438043338.

The previous prime is 438043327. The next prime is 438043381. The reversal of 438043339 is 933340834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438043339 - 2¹⁵ = 438010571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438043298 and 438043307.

It is not a weakly prime, because it can be changed into another prime (438043939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219021669 + 219021670.

It is an arithmetic number, because the mean of its divisors is an integer number (219021670).

Almost surely, 2^438043339 is an apocalyptic number.

438043339 is a deficient number, since it is larger than the sum of its proper divisors (1).

438043339 is an equidigital number, since it uses as much as digits as its factorization.

438043339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 438043339 is about 20929.4849196056. The cubic root of 438043339 is about 759.4613790973.

The spelling of 438043339 in words is "four hundred thirty-eight million, forty-three thousand, three hundred thirty-nine".