43493812 has 24 divisors (see below), whose sum is σ = 81989600. Its totient is φ = 20121696.

The previous prime is 43493809. The next prime is 43493861. The reversal of 43493812 is 21839434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3387 + ... + 9922.

Almost surely, 2^43493812 is an apocalyptic number.

It is an amenable number.

43493812 is a deficient number, since it is larger than the sum of its proper divisors (38495788).

43493812 is a wasteful number, since it uses less digits than its factorization.

43493812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13375 (or 13373 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 43493812 is about 6594.9838513828. The cubic root of 43493812 is about 351.6758055870.

The spelling of 43493812 in words is "forty-three million, four hundred ninety-three thousand, eight hundred twelve".