43842643 has 16 divisors (see below), whose sum is σ = 50240736. Its totient is φ = 37900800.

The previous prime is 43842641. The next prime is 43842647. The reversal of 43842643 is 34624834.

It is a cyclic number.

It is not a de Polignac number, because 43842643 - 2¹ = 43842641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43842599 and 43842608.

It is not an unprimeable number, because it can be changed into a prime (43842641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62193 + ... + 62893.

It is an arithmetic number, because the mean of its divisors is an integer number (3140046).

Almost surely, 2^43842643 is an apocalyptic number.

43842643 is a deficient number, since it is larger than the sum of its proper divisors (6398093).

43842643 is a wasteful number, since it uses less digits than its factorization.

43842643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

The product of its digits is 55296, while the sum is 34.

The square root of 43842643 is about 6621.3777267273. The cubic root of 43842643 is about 352.6134785459.

The spelling of 43842643 in words is "forty-three million, eight hundred forty-two thousand, six hundred forty-three".