43284340 has 48 divisors (see below), whose sum is σ = 99800064. Its totient is φ = 15638400.

The previous prime is 43284331. The next prime is 43284361. The reversal of 43284340 is 4348234.

It is a junction number, because it is equal to n+sod(n) for n = 43284299 and 43284308.

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, 39277 + ... + 40363.

It is an arithmetic number, because the mean of its divisors is an integer number (2079168).

Almost surely, 2^43284340 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 43284340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49900032).

43284340 is an abundant number, since it is smaller than the sum of its proper divisors (56515724).

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

43284340 is a wasteful number, since it uses less digits than its factorization.

43284340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1286 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 43284340 is about 6579.0835228016. The cubic root of 43284340 is about 351.1103242726.

It can be divided in two parts, 4328 and 4340, that added together give a palindrome (8668).

The spelling of 43284340 in words is "forty-three million, two hundred eighty-four thousand, three hundred forty".