43140056 has 16 divisors (see below), whose sum is σ = 80969640. Its totient is φ = 21548160.

The previous prime is 43140037. The next prime is 43140079. The reversal of 43140056 is 65004134.

It is a happy number.

It is a super-2 number, since 2×43140056² = 3722128863366272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8240 + ... + 12416.

Almost surely, 2^43140056 is an apocalyptic number.

It is an amenable number.

43140056 is a deficient number, since it is larger than the sum of its proper divisors (37829584).

43140056 is a wasteful number, since it uses less digits than its factorization.

43140056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474 (or 5470 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 43140056 is about 6568.1090124936. The cubic root of 43140056 is about 350.7197596476.

The spelling of 43140056 in words is "forty-three million, one hundred forty thousand, fifty-six".