438105537804 has 72 divisors (see below), whose sum is σ = 1124401620160. Its totient is φ = 132667619040.

The previous prime is 438105537767. The next prime is 438105537811. The reversal of 438105537804 is 408735501834.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2015067 + ... + 2221869.

Almost surely, 2^438105537804 is an apocalyptic number.

438105537804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438105537804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562200810080).

438105537804 is an abundant number, since it is smaller than the sum of its proper divisors (686296082356).

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

438105537804 is a wasteful number, since it uses less digits than its factorization.

438105537804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208291 (or 208278 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 438105537804 in words is "four hundred thirty-eight billion, one hundred five million, five hundred thirty-seven thousand, eight hundred four".