43452140 has 24 divisors (see below), whose sum is σ = 91597632. Its totient is φ = 17314560.

The previous prime is 43452131. The next prime is 43452163. The reversal of 43452140 is 4125434.

43452140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 1412 + ... + 9428.

It is an arithmetic number, because the mean of its divisors is an integer number (3816568).

Almost surely, 2^43452140 is an apocalyptic number.

It is an amenable number.

43452140 is an abundant number, since it is smaller than the sum of its proper divisors (48145492).

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

43452140 is a wasteful number, since it uses less digits than its factorization.

43452140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8297 (or 8295 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 43452140 is about 6591.8237233712. The cubic root of 43452140 is about 351.5634546081.

Adding to 43452140 its reverse (4125434), we get a palindrome (47577574).

The spelling of 43452140 in words is "forty-three million, four hundred fifty-two thousand, one hundred forty".