43195640 has 64 divisors (see below), whose sum is σ = 103874400. Its totient is φ = 16109568.

The previous prime is 43195631. The next prime is 43195643. The reversal of 43195640 is 4659134.

43195640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43195597 and 43195606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43195643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 94292 + ... + 94748.

Almost surely, 2^43195640 is an apocalyptic number.

43195640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43195640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51937200).

43195640 is an abundant number, since it is smaller than the sum of its proper divisors (60678760).

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

43195640 is a wasteful number, since it uses less digits than its factorization.

43195640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 43195640 is about 6572.3390052553. The cubic root of 43195640 is about 350.8703238205.

The spelling of 43195640 in words is "forty-three million, one hundred ninety-five thousand, six hundred forty".