438381190404 has 36 divisors (see below), whose sum is σ = 1108167601996. Its totient is φ = 146122135488.

The previous prime is 438381190367. The next prime is 438381190409. The reversal of 438381190404 is 404091183834.

438381190404 is a `hidden beast` number, since 4 + 3 + 83 + 81 + 1 + 90 + 404 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 280637181504 + 157744008900 = 529752^2 + 397170^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 438381190404.

It is not an unprimeable number, because it can be changed into a prime (438381190409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968982 + ... + 1347474.

Almost surely, 2^438381190404 is an apocalyptic number.

It is an amenable number.

438381190404 is an abundant number, since it is smaller than the sum of its proper divisors (669786411592).

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

438381190404 is a wasteful number, since it uses less digits than its factorization.

438381190404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410676 (or 410671 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 438381190404 in words is "four hundred thirty-eight billion, three hundred eighty-one million, one hundred ninety thousand, four hundred four".