438950919426 has 32 divisors (see below), whose sum is σ = 900050030208. Its totient is φ = 142631448960.

The previous prime is 438950919403. The next prime is 438950919427. The reversal of 438950919426 is 624919059834.

It is a self number, because there is not a number n which added to its sum of digits gives 438950919426.

It is not an unprimeable number, because it can be changed into a prime (438950919427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428641 + ... + 1030356.

It is an arithmetic number, because the mean of its divisors is an integer number (28126563444).

Almost surely, 2^438950919426 is an apocalyptic number.

438950919426 is an abundant number, since it is smaller than the sum of its proper divisors (461099110782).

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

438950919426 is a wasteful number, since it uses less digits than its factorization.

438950919426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460266.

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 438950919426 in words is "four hundred thirty-eight billion, nine hundred fifty million, nine hundred nineteen thousand, four hundred twenty-six".