43313340 has 96 divisors (see below), whose sum is σ = 139474944. Its totient is φ = 9838080.

The previous prime is 43313339. The next prime is 43313351. The reversal of 43313340 is 4331334.

43313340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117837 + ... + 118203.

It is an arithmetic number, because the mean of its divisors is an integer number (1452864).

Almost surely, 2^43313340 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 43313340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69737472).

43313340 is an abundant number, since it is smaller than the sum of its proper divisors (96161604).

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

43313340 is a wasteful number, since it uses less digits than its factorization.

43313340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 43313340 is about 6581.2871081575. The cubic root of 43313340 is about 351.1887200332.

Adding to 43313340 its reverse (4331334), we get a palindrome (47644674).

The spelling of 43313340 in words is "forty-three million, three hundred thirteen thousand, three hundred forty".