438985212 has 24 divisors (see below), whose sum is σ = 1024864512. Its totient is φ = 146247600.

The previous prime is 438985187. The next prime is 438985223. The reversal of 438985212 is 212589834.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 15037 + ... + 33227.

It is an arithmetic number, because the mean of its divisors is an integer number (42702688).

Almost surely, 2^438985212 is an apocalyptic number.

It is an amenable number.

438985212 is an abundant number, since it is smaller than the sum of its proper divisors (585879300).

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

438985212 is a wasteful number, since it uses less digits than its factorization.

438985212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20209 (or 20207 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 438985212 is about 20951.9739404191. The cubic root of 438985212 is about 760.0053162140.

The spelling of 438985212 in words is "four hundred thirty-eight million, nine hundred eighty-five thousand, two hundred twelve".