43423457 has 32 divisors (see below), whose sum is σ = 58579200. Its totient is φ = 31799040.

The previous prime is 43423453. The next prime is 43423553. The reversal of 43423457 is 75432434.

43423457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43423457 - 2² = 43423453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43423451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63803 + ... + 64479.

It is an arithmetic number, because the mean of its divisors is an integer number (1830600).

Almost surely, 2^43423457 is an apocalyptic number.

It is an amenable number.

43423457 is a deficient number, since it is larger than the sum of its proper divisors (15155743).

43423457 is a wasteful number, since it uses less digits than its factorization.

43423457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726 (or 712 counting only the distinct ones).

The product of its digits is 40320, while the sum is 32.

The square root of 43423457 is about 6589.6477144078. The cubic root of 43423457 is about 351.4860812483.

The spelling of 43423457 in words is "forty-three million, four hundred twenty-three thousand, four hundred fifty-seven".