438360985 has 8 divisors (see below), whose sum is σ = 533239560. Its totient is φ = 345884544.

The previous prime is 438360959. The next prime is 438361009. The reversal of 438360985 is 589063834.

It can be written as a sum of positive squares in 4 ways, for example, as 107557641 + 330803344 = 10371^2 + 18188^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 438360985 - 2¹⁵ = 438328217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600130 + ... + 600859.

It is an arithmetic number, because the mean of its divisors is an integer number (66654945).

Almost surely, 2^438360985 is an apocalyptic number.

It is an amenable number.

438360985 is a deficient number, since it is larger than the sum of its proper divisors (94878575).

438360985 is a wasteful number, since it uses less digits than its factorization.

438360985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201067.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 438360985 is about 20937.0720254767. The cubic root of 438360985 is about 759.6449085640.

The spelling of 438360985 in words is "four hundred thirty-eight million, three hundred sixty thousand, nine hundred eighty-five".