43140044 has 12 divisors (see below), whose sum is σ = 75721464. Its totient is φ = 21505344.

The previous prime is 43140037. The next prime is 43140079. The reversal of 43140044 is 44004134.

It is a super-2 number, since 2×43140044² = 3722126792643872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43139998 and 43140025.

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, 14654 + ... + 17349.

It is an arithmetic number, because the mean of its divisors is an integer number (6310122).

Almost surely, 2^43140044 is an apocalyptic number.

It is an amenable number.

43140044 is a deficient number, since it is larger than the sum of its proper divisors (32581420).

43140044 is a wasteful number, since it uses less digits than its factorization.

43140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32344 (or 32342 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 43140044 is about 6568.1080989886. The cubic root of 43140044 is about 350.7197271284.

Adding to 43140044 its reverse (44004134), we get a palindrome (87144178).

The spelling of 43140044 in words is "forty-three million, one hundred forty thousand, forty-four".