438020834 has 8 divisors (see below), whose sum is σ = 660436140. Its totient is φ = 217875456.

The previous prime is 438020801. The next prime is 438020867.

438020834 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (438020801) and next prime (438020867).

It can be written as a sum of positive squares in 2 ways, for example, as 406627225 + 31393609 = 20165^2 + 5603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 438020834.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566999 + ... + 567770.

Almost surely, 2^438020834 is an apocalyptic number.

438020834 is a deficient number, since it is larger than the sum of its proper divisors (222415306).

438020834 is a wasteful number, since it uses less digits than its factorization.

438020834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134964.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 438020834 is about 20928.9472740508. The cubic root of 438020834 is about 759.4483727959.

The spelling of 438020834 in words is "four hundred thirty-eight million, twenty thousand, eight hundred thirty-four".