43340140 has 48 divisors (see below), whose sum is σ = 101455200. Its totient is φ = 15455232.

The previous prime is 43340113. The next prime is 43340153. The reversal of 43340140 is 4104334.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 3106 + ... + 9814.

It is an arithmetic number, because the mean of its divisors is an integer number (2113650).

Almost surely, 2^43340140 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 43340140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50727600).

43340140 is an abundant number, since it is smaller than the sum of its proper divisors (58115060).

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

43340140 is a wasteful number, since it uses less digits than its factorization.

43340140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6754 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 43340140 is about 6583.3228691900. The cubic root of 43340140 is about 351.2611374237.

Adding to 43340140 its reverse (4104334), we get a palindrome (47444474).

The spelling of 43340140 in words is "forty-three million, three hundred forty thousand, one hundred forty".