42943684 has 24 divisors (see below), whose sum is σ = 86115008. Its totient is φ = 18355680.

The previous prime is 42943651. The next prime is 42943697. The reversal of 42943684 is 48634924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9967 + ... + 13609.

Almost surely, 2^42943684 is an apocalyptic number.

It is an amenable number.

42943684 is an abundant number, since it is smaller than the sum of its proper divisors (43171324).

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

42943684 is a wasteful number, since it uses less digits than its factorization.

42943684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075 (or 4073 counting only the distinct ones).

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

The square root of 42943684 is about 6553.1430626837. The cubic root of 42943684 is about 350.1867955273.

The spelling of 42943684 in words is "forty-two million, nine hundred forty-three thousand, six hundred eighty-four".