438728196792 has 32 divisors (see below), whose sum is σ = 1096852755600. Its totient is φ = 146238430464.

The previous prime is 438728196769. The next prime is 438728196811. The reversal of 438728196792 is 297691827834.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624628 + ... + 1125884.

Almost surely, 2^438728196792 is an apocalyptic number.

It is an amenable number.

438728196792 is an abundant number, since it is smaller than the sum of its proper divisors (658124558808).

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

438728196792 is a wasteful number, since it uses less digits than its factorization.

438728196792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537735 (or 537731 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 66.

The spelling of 438728196792 in words is "four hundred thirty-eight billion, seven hundred twenty-eight million, one hundred ninety-six thousand, seven hundred ninety-two".