438630792 has 64 divisors (see below), whose sum is σ = 1172223360. Its totient is φ = 136435200.

The previous prime is 438630791. The next prime is 438630817. The reversal of 438630792 is 297036834.

It is not an unprimeable number, because it can be changed into a prime (438630791) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12942 + ... + 32322.

It is an arithmetic number, because the mean of its divisors is an integer number (18315990).

Almost surely, 2^438630792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438630792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586111680).

438630792 is an abundant number, since it is smaller than the sum of its proper divisors (733592568).

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

438630792 is a wasteful number, since it uses less digits than its factorization.

438630792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19454 (or 19450 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 438630792 is about 20943.5143182800. The cubic root of 438630792 is about 759.8007279955.

The spelling of 438630792 in words is "four hundred thirty-eight million, six hundred thirty thousand, seven hundred ninety-two".