438774372 has 72 divisors (see below), whose sum is σ = 1205218560. Its totient is φ = 134084160.

The previous prime is 438774319. The next prime is 438774397. The reversal of 438774372 is 273477834.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10858 + ... + 31550.

Almost surely, 2^438774372 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 438774372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602609280).

438774372 is an abundant number, since it is smaller than the sum of its proper divisors (766444188).

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

438774372 is a wasteful number, since it uses less digits than its factorization.

438774372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20753 (or 20748 counting only the distinct ones).

The product of its digits is 790272, while the sum is 45.

The square root of 438774372 is about 20946.9418292981. The cubic root of 438774372 is about 759.8836225311.

The spelling of 438774372 in words is "four hundred thirty-eight million, seven hundred seventy-four thousand, three hundred seventy-two".