43217853340 has 48 divisors (see below), whose sum is σ = 95650974720. Its totient is φ = 16357273920.

The previous prime is 43217853311. The next prime is 43217853353. The reversal of 43217853340 is 4335871234.

It is a junction number, because it is equal to n+sod(n) for n = 43217853293 and 43217853302.

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, 243645 + ... + 381835.

It is an arithmetic number, because the mean of its divisors is an integer number (1992728640).

Almost surely, 2^43217853340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43217853340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47825487360).

43217853340 is an abundant number, since it is smaller than the sum of its proper divisors (52433121380).

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

43217853340 is a wasteful number, since it uses less digits than its factorization.

43217853340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139042 (or 139040 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 43217853340 in words is "forty-three billion, two hundred seventeen million, eight hundred fifty-three thousand, three hundred forty".