43450664208 has 160 divisors (see below), whose sum is σ = 136194140160. Its totient is φ = 11652802560.

The previous prime is 43450664207. The next prime is 43450664237. The reversal of 43450664208 is 80246605434.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 43450664208.

It is not an unprimeable number, because it can be changed into a prime (43450664203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2154813 + ... + 2174883.

It is an arithmetic number, because the mean of its divisors is an integer number (851213376).

Almost surely, 2^43450664208 is an apocalyptic number.

43450664208 is a gapful number since it is divisible by the number (48) 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 43450664208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68097070080).

43450664208 is an abundant number, since it is smaller than the sum of its proper divisors (92743475952).

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

43450664208 is a wasteful number, since it uses less digits than its factorization.

43450664208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20485 (or 20479 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 43450664208 in words is "forty-three billion, four hundred fifty million, six hundred sixty-four thousand, two hundred eight".