43421210340 has 96 divisors (see below), whose sum is σ = 128049102720. Its totient is φ = 10963501056.

The previous prime is 43421210323. The next prime is 43421210401. The reversal of 43421210340 is 4301212434.

It is a self number, because there is not a number n which added to its sum of digits gives 43421210340.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2267044 + ... + 2286116.

It is an arithmetic number, because the mean of its divisors is an integer number (1333844820).

Almost surely, 2^43421210340 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 43421210340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64024551360).

43421210340 is an abundant number, since it is smaller than the sum of its proper divisors (84627892380).

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

43421210340 is a wasteful number, since it uses less digits than its factorization.

43421210340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21101 (or 21099 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 43421210340 its reverse (4301212434), we get a palindrome (47722422774).

The spelling of 43421210340 in words is "forty-three billion, four hundred twenty-one million, two hundred ten thousand, three hundred forty".