438738084 has 36 divisors (see below), whose sum is σ = 1113061404. Its totient is φ = 145714752.

The previous prime is 438738077. The next prime is 438738127. The reversal of 438738084 is 480837834.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 89870400 + 348867684 = 9480^2 + 18678^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×438738084² = 384982212703982112, which contains 22 as substring.

It is an unprimeable number.

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, 12027 + ... + 31970.

Almost surely, 2^438738084 is an apocalyptic number.

It is an amenable number.

438738084 is an abundant number, since it is smaller than the sum of its proper divisors (674323320).

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

438738084 is a wasteful number, since it uses less digits than its factorization.

438738084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44284 (or 44279 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 438738084 is about 20946.0756228941. The cubic root of 438738084 is about 759.8626737103.

The spelling of 438738084 in words is "four hundred thirty-eight million, seven hundred thirty-eight thousand, eighty-four".