43194000208 has 80 divisors (see below), whose sum is σ = 90081823680. Its totient is φ = 20001226752.

The previous prime is 43194000173. The next prime is 43194000211. The reversal of 43194000208 is 80200049134.

It is a self number, because there is not a number n which added to its sum of digits gives 43194000208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4554960 + ... + 4564432.

It is an arithmetic number, because the mean of its divisors is an integer number (1126022796).

Almost surely, 2^43194000208 is an apocalyptic number.

43194000208 is the 119992-nd octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43194000208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45040911840).

43194000208 is an abundant number, since it is smaller than the sum of its proper divisors (46887823472).

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

43194000208 is a wasteful number, since it uses less digits than its factorization.

43194000208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9836 (or 9830 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 43194000208 in words is "forty-three billion, one hundred ninety-four million, two hundred eight", and thus it is an aban number.