43243816 has 32 divisors (see below), whose sum is σ = 101090880. Its totient is φ = 16848000.

The previous prime is 43243793. The next prime is 43243819. The reversal of 43243816 is 61834234.

It is not an unprimeable number, because it can be changed into a prime (43243819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34485 + ... + 35716.

It is an arithmetic number, because the mean of its divisors is an integer number (3159090).

Almost surely, 2^43243816 is an apocalyptic number.

It is an amenable number.

43243816 is an abundant number, since it is smaller than the sum of its proper divisors (57847064).

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

43243816 is a wasteful number, since it uses less digits than its factorization.

43243816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70225 (or 70221 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 43243816 is about 6576.0030413618. The cubic root of 43243816 is about 351.0007169841. Note that the first 3 decimals are identical.

The spelling of 43243816 in words is "forty-three million, two hundred forty-three thousand, eight hundred sixteen".