438730212 has 24 divisors (see below), whose sum is σ = 1059004800. Its totient is φ = 141200416.

The previous prime is 438730211. The next prime is 438730261. The reversal of 438730212 is 212037834.

It is a self number, because there is not a number n which added to its sum of digits gives 438730212.

It is not an unprimeable number, because it can be changed into a prime (438730211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630012 + ... + 630707.

It is an arithmetic number, because the mean of its divisors is an integer number (44125200).

Almost surely, 2^438730212 is an apocalyptic number.

It is an amenable number.

438730212 is an abundant number, since it is smaller than the sum of its proper divisors (620274588).

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

438730212 is a wasteful number, since it uses less digits than its factorization.

438730212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260755 (or 1260753 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 438730212 is about 20945.8877109565. The cubic root of 438730212 is about 759.8581291046.

The spelling of 438730212 in words is "four hundred thirty-eight million, seven hundred thirty thousand, two hundred twelve".