43984642 has 16 divisors (see below), whose sum is σ = 72055872. Its totient is φ = 20013840.

The previous prime is 43984637. The next prime is 43984663. The reversal of 43984642 is 24648934.

It is a junction number, because it is equal to n+sod(n) for n = 43984595 and 43984604.

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, 10068 + ... + 13759.

It is an arithmetic number, because the mean of its divisors is an integer number (4503492).

Almost surely, 2^43984642 is an apocalyptic number.

43984642 is a deficient number, since it is larger than the sum of its proper divisors (28071230).

43984642 is a wasteful number, since it uses less digits than its factorization.

43984642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23913.

The product of its digits is 165888, while the sum is 40.

The square root of 43984642 is about 6632.0918268673. The cubic root of 43984642 is about 352.9937536847.

The spelling of 43984642 in words is "forty-three million, nine hundred eighty-four thousand, six hundred forty-two".