43423972 has 12 divisors (see below), whose sum is σ = 76083840. Its totient is φ = 21685736.

The previous prime is 43423969. The next prime is 43423999. The reversal of 43423972 is 27932434.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572 + ... + 9667.

It is an arithmetic number, because the mean of its divisors is an integer number (6340320).

Almost surely, 2^43423972 is an apocalyptic number.

It is an amenable number.

43423972 is a deficient number, since it is larger than the sum of its proper divisors (32659868).

43423972 is a wasteful number, since it uses less digits than its factorization.

43423972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130 (or 13128 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 43423972 is about 6589.6867907360. The cubic root of 43423972 is about 351.4874707785.

The spelling of 43423972 in words is "forty-three million, four hundred twenty-three thousand, nine hundred seventy-two".